Looking for some advise. I have done nothing but rereational diving to this point and want to starting getting some gear and trainning for tek. I need to purchase another BC just because I want one and by working at my LDS, I get killer prices. My thinking is instead of buying another recreational BC to go ahead and by a more tek oriented BC. I want to get a Halcyon SS back plate w/the harness. My question is, if I get the explorer wings, can they be used in a sigle tank application until I am ready to use them for doubles. Am I better to do that or by the pioneer wings and get the double wings later. I will proably still be using primarily AL 80's until I can get the steel tanks. If I were to get the explorer wings, how hard id to convert them for sigle use? This proably sounds like a lot of babble but I think you get my point. Any guidance or suggestions would be appreciated. Be gental because I am new.