Quote: (Originally Posted by
jamiemac)

the problem is, what cylinders should we get , steel 2L? that'll take care of all the AP guys, right?
Jamie,
Personally, I would get the same 3L steel used on APD units (i.e. Inspiration, not Evolution). And same valves (i.e. 180-deg, not 90-deg).
That way all of the YBOD divers will be able to use them inside their APD case. And others (i.e. Meg, KISS) who use the tanks outside will be able to use them too despite the reach for the valves is slightly different.
If you use 2L tanks, you could be limited to the max dive time as we experienced on our trip. We were only able to do 50 mins at 57m/190ft when we wanted to do more (i.e. same as another group did the week before).
By using 3L steel, you only exclude the Evolution divers who are still using their APD-issued case - in which case, they should be traveling with a Travel-Frame anyway...
I am so glad that you guys are investing in the Rebreather-market since I have always wanted to dive the Gulf, but never had the opportunity. Thanks...