Making the leap: help choosing first rb

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Not true have dived my rEvo extensively in the tropics in 3mm wet suit, during courses etc, trims out fine, and is most certainly very usable.



Another rEvo myth, which i heard when I was looking the revo back in 2012, there is no risk at all of moisture that may ordinarily accumulate in the inhale lung damaging the cells should one turn on their back.

i have totally flooded my rEvo (my mistake, left DSV open a crack when practicing bailout) filled it the brim only noticed when my cells started going berserk , got home rinsed out the unit flushed cells with fresh water and they were fine, cycled them out of the unit as normal over the next few years.

I already answered on another forum but I will share some info from my early days.

We I first got my rEvo and found myself butt heavy, I merely added 4 pounds of weight to the top tray and my trim was as close to perfect as it has ever been. I could hover 1 inch off the sand and remain perfectly horizontal without any need of movement at all. I really wish I could still do this but now I fight it just like everyone else. From day one, every other rEvo diver was bitching about how they were to heavy and could not add any more weight. I just assumed they were idiots and were afraid to try. When it was time for a new wetsuit was when my perfect trim went away forever. I went from a 3mm to a 5 mm and now I was too heavy in the water AND my feet were sinking. I went back to my old suit and everything was fine for the test. Turns out that the custom made suit from Wetwear being made from rubatex is much more buoyant than even a 5mm suit. All those other "idiot" divers were right all along and I was just lucky to have the wetsuit I did.

I still have the 4 pounds on the top tray but I am over weighted in the ocean with a wetsuit. I could really use at least 2 more pounds up there. I have even considered the idea of just adding neoprene "leggings" to my wetsuit.

I have decided that the only way to make it work properly is to get a titanium unit which is light enough that I can make up the difference by adding weight to the top of the unit. Or just dive a drysuit all the time.

The most overlooked thing that will give a false sense of being butt heavy is having too much loop volume. Doing this will cause a huge swing in center of balance with just the extremely smallest of head up movement, your feet will drop like a rock and the fight begins.
 
...sure Superlyte27, all rEvo divers are long dead by now. If by mistake some survived then they are either inexperienced fanboys or improperly trained. I really wonder why you permanently hate this unit and all its users.
I hate the unit because it’s crap. But dude, the rest of your post is pure fecal matter.

I’m willing to put my money where my mouth is. Make the dive.
 
I don't need the butt pillow for trim on the o2ptima.
But with Worthington hp100's for dilout, and lp27's on the unit, the standard wing struggles a bit. When I had a complete drysuit flood caused by a sheared off exhaust valve (I don't know my own strength), the wing was barely enough. My friend who dives a similar setup, uses an older nomad wing instead of the standard o2ptima wing, but helium in the dilout should help as well if I don't find another good wing option.

With al19's and al80's for dilout, the standard wing is great and trim is fine. Not sure how it would work flooded to the brim, because its easy to notice before you get that flooded, and easy to get water out.
 
I hate the unit because it’s crap. But dude, the rest of your post is pure fecal matter.

I’m willing to put my money where my mouth is. Make the dive.
If you hate them so much, gather them into a box and ship them out west. We love them over hear. Far from the politics of Cave Country.
 
I challenge anyone to stay on the loop of a Revo with a total flood (to the brim). In fact, I’ll pay $100 to see it.

I did not say I went back on the loop, I was like in around 10m of water breathing off my bailout when I noticed my cells going crazy and soon relaised I had left the DSV open a crack.

Otherwise have never flooded my rEvo, have never got any slat water in it in nearly 500hrs on the unit.

and to hover truly flat in a 3mm wetsuit without moving or a butt trim pillow

Never heard of butt pillow until this thread, certainly not needed on the rEvo in a 3mm wet suit

. I really wonder why you permanently hate this unit and all its users.

Superlyte is clearly a want to be butt hurt rEvo instructor back in the days when rEvo had a very tight rein on who can instructs on the unit. Now takes every opportunity to bag out the unit along with some other instructors on this board who teach on other units and see the rEvo as very stiff competition in the market thus they perpetuate the myths above along with others. Quite funny watching this play out
 
and another myth commonly perpetuated by the likes of the Superlyte

Also, it doesn’t breathe well at perfect trim, it breathes NONE inverted, lol

Work of breathing of the rEvo is perfectly fine, my experience is that it is effortless, whether it be head up head down or in trim, at extremes head down and on my back it get a bit tight, but don't find myself in those positions very often. Stay within the the gas density guidelines and maintain minimum loop volume like we are trained to do and no one will have any problems with the rEvo WOB.

The rEvo work of breathing may not be the best but from the worst. Saw some figures a few years ago that compared WOB of many rebreathers on the market at the time and rEvo was in the top 20% or there about.
 
I spoke with the Prism dealer/trainer again. He mostly dove the Optima with the Hammerhead electronics and did not do a lot of dives on newer version. He also recommended that if we take the Optima route that we find an instructor more familiar with the unit. He is willing to train us on the unit but felt we would get better training on someone who dives the unit regularly. I think this says a lot for his integrity.
If we go with the Optima will we be able to find compatible size rental bottles overseas?
Which unit packs/travels better for International flying?
What are the pros and cons of the iBOV? More jaw fatigue?
The Optima looks narrower which seems like a plus on a crowded boat?
We want to be able to do wreck penetrations which seems like the Optima would be better for?
As newbies should we go with the Nerd 2 or the standard HUD?
I know the fourth sensor is not really needed and requires more of our attention, so if we duct tape over it :) would it be the same as the diving the Prism? ( I would never do this! Just looking for feedback)
 
@Zebra 1
You'll be able to find something when travelling with the O2ptima. 2l's are usually available
O2ptima will likely travel better, especially the Choptima
iBov won't have any more jaw fatigue, the biggest thing is the face MAV's. Less chest clutter and you always know where your face is for gas addition. It also removes the ADV since it is built into the bov which is nice.
O2ptima is narrower, but it's not "narrow". You'll be fine with either unit on a boat
Both will do wreck pen comparably well, though the O2ptima is certainly more durable than the prism due to less plastic
Personal and budget preference. I like the NERDs...
Doesn't really require more attention. The SOLO board reads 1-3, and the OBOE reads 2-4 *it may actually be 1/2/4 but I can't remember and it's not that important*. None of the computers will read all 4 at once. The only unit that I'm aware of that has and displays all 4 cells is the Liberty which is also the only unit that lets you manually vote cells out which I think is really nice!
 
I did not say I went back on the loop, I was like in around 10m of water breathing off my bailout when I noticed my cells going crazy and soon relaised I had left the DSV open a crack.

Otherwise have never flooded my rEvo, have never got any slat water in it in nearly 500hrs on the unit.



Never heard of butt pillow until this thread, certainly not needed on the rEvo in a 3mm wet suit



Superlyte is clearly a want to be butt hurt rEvo instructor back in the days when rEvo had a very tight rein on who can instructs on the unit. Now takes every opportunity to bag out the unit along with some other instructors on this board who teach on other units and see the rEvo as very stiff competition in the market thus they perpetuate the myths above along with others. Quite funny watching this play out

lol, I never wanted to be an instructor on the Revo. I quit diving the Revo long before I became any instructor on any unit. I make about $100k per month. I couldn’t give a rats butt if I ever taught again. It’s pretty nice being able to be selective on students I teach.
 
https://www.shearwater.com/products/swift/

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