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Well, I was contacted by phone and email. A representative told me that the Nano-fog lens was out of stock and offered me the option of the hard lens. I replied by email with a clarification question a couple days back, but haven't heard back from them yet. They appear to be alive but...

I've been trying to contact them with no luck. I sent an email question a week ago and tried calling the past two days all with no response. I was able to place an online order for a lens replacement kit, so we'll see if that actually goes through.

Several things got me interested in Scuba. I'd say the "Undersea World" TV specials started it. Then in my High School gym class one of the science teachers brought his gear in to the pool. He swam around, then let those of us who wanted to breath off his octo while kneeling in the shallow...

I bought a pair of soled boots over the weekend and found that they fit the XL foot pocket nicely. The L size worked well for my soleless boots, but the new boots wouldn't fit into the pocket. That answers the question of whether to stick with the XL or not. The extra bite of the longer...

I've been following this thread and thinking about it as my gf just passed the swim test last week. I swam along in the front crawl and was exhausted half way through the test, having to switch to the back stroke to finish out. That got me to wondering, since I'm in fairly good shape. So...

New pilots don't sit in the right seat. New to an airline perhaps, but the equivalent of a new OW diver is a new private pilot. New pilots, like new divers, are in total command of their fate. New pilots also take friends and family along right after getting their ticket. New divers do the...

It is. You can find more of my comments at: http://www.scubaboard.com/showthread.php?s=&threadid=29130 I'm not usually the first to try out new gadgets, but after reading the website and going over the optics I had to try it. I did, and as I report in the other thread I found the claims...

Lol, the URL is http://www.hydrooptix.com/index2.htm I've got one and it's not hype. The company does a good job of explaining the physics of it, and I've had nothing but great service from them. I know all the arguments for low/high volume, but what I dive for is to see stuff, and...

The best field of view I've found by far is the Hydroptix MegaMax, and it's also the highest volume. Just like the tip to check fit with a snorkle in your mouth, check the true field of view under water. Placing the glass closer to your eyes works to increase the field of view above water...

If you have a choice of swimming strokes, try the backstroke. Right now I'd have a problem doing the front crawl for long due to my poor technique, but I could lay back and swim quite a ways. I don't float well, but I easily passed the ten minute tread/float test by floating with the...

Has anyone else gone from L to XL and noticed a difference? Or the opposite for that matter? I'm trying it based on a suggestion it might help my backward's kick to have more fin area. On first blush I felt as though I don't have the same control, though my time was limited to 15-20min in the...

I just tried out XL's in the pool last night after having dived with L's for some time. The pocket is both deeper and wider and I felt the fins shifting back and forth on my wet suit boots (size 10) enough that it was noticable. I'm going to play with it it a bit more and might try to find...

Yep, I took the mask into a local lake with low vis and loved the way it mitigated the "claustaphobic" feeling by replacing the lost depth of view with a broader field of view. I was buddied up with another pair for a time when my first buddy was taken by an instructor for some drills and I...

Ok, so what I'm hearing is that there is a much better way to plan dives than with either the standard tables or a computer, and it would nice if other agencies other than GUE taught it to OW divers. But I'm also hearing that it's complicated enough that you can only get it in a DIR-F class and...

I believe you are correct about the behavior in minimum deco. The Cobra starts at 10' and lowers the ceiling as the deco obligation increases. David

I'll have to go back to the manual and try the simulation again, but I distinctly recall reading that the Cobra would give a deeper stop and gradually reduce the ceiling as offgassing was accomplished. The manual states that the time taken to get to the first stop could increase the total time...

Thanks for the reference Mike. I certified back in 1986 and didn't get much in the way of decompression theory. Probably due to there not being as much work done back then. The GAP website looks like a good place to start a study of the subject. This board is a great place to learn what...

Very good points. Where would I find these BRW papers? Where can I find a good deco software program to play with? Any suggestions for a program that would work best for this investigation? David

That would indeed be scary. How many computers would do that? Fortunately the Cobra I use is much better if you mess up and incur deco in that it calculates multiple deco depths and allows for continuing offgassing as you ascend. I played with it in simulation mode when I first got it and if...