Let me refrase that... "large double steels" (But usually the smaller steels will have too little volume for technical dives)Doubled old-school 72's (2 x 71.2 cu ft @ 2,475) + Luxfer Al 40 in salt water seem to work okay dove with a wetsuit. At least, the numbers suggest to me that this config will be safe enough.
rx7diver
The problem is not so much the tanks OR the wing OR the wetsuit. The combination however is an issue.
The HP100s with a wetsuit is going to be a serious issue in case of wing failure. The size of the wing is then going to be a mute point.
A 40Lbs wing is perfectly adequate for D12 steels, if the diver is in a drysuit. D12 steels are not appropriate for technial dives in a wetsuit. (in my opinion of course...)