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If I can't see the bottle markings, I don't use it, period. Relying on an identifying feature on anything but the bottle makes it that much easier to screw up. There was an instructor up here who used to rely on the "right rich, left lean" methodology for identifying his gasses. Worked fine...

Exactly. We do multi stage, multi gas dives all the time, and every switch gets verified. I'm kind of shocked that this isn't SOP in caves as well.

Another fantastic resource for flexibility and mobility is the blog at MobilityWOD A quick search for shoulders should turn up quite a few valuable exercises.

Well I just sat down and read this whole thread for the first time last night. I agree and disagree with a lot of whats been said, sometimes from the same poster :) I do agree with JC that you should know your own body and be able to adjust your deco based on in dive variables (cold, stress...

Yep, and I'm very lucky to have him as my primary team mate :) We've done some interesting dives together, and seen some cool places.

It totally changed what is acceptable risk for us, and made us take a serious look at what were were doing and how we were doing it.

Doug was recovered by the OPP (Ontario Provincial Police) dive team the following day.

It wasn't.. 2 days for a DIR tech course...'nuf said.

I was merely pointing out what appeared to be inflated profiles, and based on experiences with other graduates from the instructor in question, a humorous claim of being DIR. Anyone can put anything in their profiles. I think there was more credibility and less chest beating around here...

I don't need to beat my chest here, but my training is in my profile.. I guess that makes sense. A lot dives we do in the St Lawrence incur deco, but due to the profile, we are long clear by the time we get back to the entrance so I never really count them as deco dives.

I was referring to a lot of the other posters...

I guess my take on DIR is a bit different. Anyone who has an IANTD logo on their site with "Deep Air" in it is pretty much the polar opposite of DIR to me. STPHANE JOLICOEUR

There's a DIR tech instructor in Montreal?? What is considered a deco dive? Looks like some pretty big numbers being put out in some short periods of time...

It was actually the Kinghorn that they were diving. We'd love to find easy shore access to the Jodrey though. His screen name here is Kevin R and he may not want to discuss this at length, however he would still be a valuable addition to this forum. Heres my post from a line tender thread...

A small freeflow can turn into a full blown mess very fast due to the cold water. One incident in particular that drastically changed our risk assessment started with a single stage freeflowing, and turned into multiple regs as well as an inflator, causing a runaway ascent. This resulted in...

Ice diving, tethered or otherwise, needs respect and limits. Keep in mind what could happen should you face an inflator freeflow on an untethered dive. How far up is that ceiling going to be? Will you be able to find your guideline when/if you get back to the bottom? The list goes on. I...

This would be a reasonable compromise, if its decided we want to lower the entry requirements. Its pretty easy to tell who would be a valuable contributor, and who wouldn't. Besides, theres nothing to say anyone couldn't be thrown out should they become counter productive.

I think this same reason would apply to AN/DP as well. Too many new Tech divers try to move too fast because what they read on the internet sounds so easy. I know there is very little activity on this forum but thats what I expected. Divers with higher level certs and experience don't have...

About 2-3hrs east of Toronto is Kingston, which has hundreds of fresh water shipwrecks, all in the 60-100' depth range. Tobermory is a bit longer drive, but again has lots of shipwrecks to see.

Personally anything that slows down the rapid progression of tech divers is a good thing. There are way to many people around who throw on a set of doubles and a long hose and think they're good to go.