Nasty comments kept me from sb. But it is part of the mentality here. DM and instructor just means you know how to demo skills on the bottom of a pool or lake, not dealing with double steels at midwater. I brought this up about putting my 2 steel tanks together to practice skills. My GUE instructor said noooo .. not safe. But the many technical divers I met said it is perfectly safe with a lift bag. So I posed the same question here 3 years ago, and getting a similar response. It is only a mental game for me, to see who is right and wrong. As it seems to be something people deal with differently. I have read it is possible to paddle and support a heavy steel rig. But there are situations where you should prethink? Don’t you think? I dive only singles- but have seen alot of double steels on wetsuit. But all on hard bottom. Yes I have shot smb from depth, from stops, and from bottom. But not with a fully loaded doubles, decos, etc that you folks do. Would consider doubles, but to me drysuit is just another mental load I can do without.