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The cookie thing is good practice. But, don't get too hung up on it. Keep in mind, all we would have done in the past is drop one clothes line, if anything, on the arrow pointing in our exit direction. Honestly, we probably would have just mentally referenced it given its close proximity to...

Good catch. A high performance non-adjustable second is the worst choice you can make unless you can properly detune it. Then, what is the point.

My only remaining Mk10 is one of my O2 regs. They just can't quite seem to duplicate the performance of that reg so I save it for the rare occasion where I will have to spend significant time on it.

Bingo. On a high helium mix at depth, it takes a really crappy reg not to function well. A lower quality second serves as a great backup and delivers plenty of gas. When you factor in how much more likely annoying freeflows are on a scooter dive of significant distance with lots of stages...

I probably should have added the qualifier that I don't like swithcing on the go anymore as discussed above. My view is that you can prep for the switch under power but if you really get smooth at it you don't lose much by stopping. Switching to your backup on the trigger isn't really that...

Switching stages on an easy swim is a completely different animal than switching stages when under power on a scooter and time and speed are important. It slows you down a bit when going from one stage to backgas. It really slows you done when going from one stage to another. Rjack, one...

Yeah, it is a completely different gas issue in a cave. In a cave, I would generally only be breathing bottom stages on a dive like this anyway so saving them for the actual dive portion makes sense because the travel to 220 will take longer. Plus, all of the deco bottles get dropped. I am...

This is why Lamont is the last man standing. You guys really should use the practioners forum as the default place for posting since the problem moderators, and they were the biggest problem, aren't cleared to post in this forum. (Of course, they may be able to do so anyway.) In the DIR...

That is actually interesting. Almost all of my deep experience is in cave so the stage useage is different. But, my first thought was, if gas was on the margin I might use a 190 bottle (21/35) instead to travel with it to depth since the getting squared away bit tends to burn the most gas and...

Actually, I thought there was more than two people on here doing these types of dives and I don't consider myself one of them.

This is really lame that, given the number of people that claim to do these dives, we are talking to each other. I get the hassle part and it is why I said don't bother until it gets easy. I don't do dry glove dives, but even with those I would think wit sufficient practice it would get easy...

I am probably going to get some of the current GUE guidance on this wrong, which is good. Those of you that know it, chime in. First, diving 119s so plenty of gas. My rock bottom would be enough to lose a teammates backgas and still ascend comfortably. Is this the current teaching? A...

Why don't you post your proposed deco profile for worst case and expected case and then we can discuss some gas usage assumptions that will make it easier for people to follow. Deco on the 35/25 would start at 120. Adding a little helium seems to help the deco slightly but frankly I used to do...

You don't want to do that. There are certain people, you know who they are, who can be a real PITA. This section keeps them from posting into "real" discussions.

Just trying to make you post and I agree that attempting to mod takes way too much time. Have a good trip to Mexico.

Trey still dives, just not the big cave stuff. If you keep in mind that Trey was a bond trader and his personality was tame by those standards, you can focus on the information. Plus, he is fun to dive with and talk to in person. Come on, I am pretty sure I have posted at least twice as...

It has come a long way. Now the arguments are over the really stupid stuff people decide to dream up because their diving is "different". That argument was old even in the techdiver days. On the bright side, a dive alert in a pocket isn't a big deal. It is the mentality around adding this...

The air horn thingy isn't DIR because it is a crutch for proper skills and dive planning. Leaving out some really crazy unrealistic scenarios, you are going to get seperated from a boat for generally two reasons. Your navigation sucks or it is a drift dive and you haven't properly planned to...

Austin is the home of batman. I think there is a quasi-almost DIR group in Austin but I am not aware of an active DIR community there. But, it has been a very long time since I was diving locally there.

Arguably, 300 bar helps better protect the threads of the reg and yes I have even see the one, very, very rarely, "ring" the cave with his valves. For just the backgas I don't find it that big of a deal to make the few extra turns and it does at least protect the threads and make it harder for...