Recently I purchased the OMS IQ pack with a 65# wing. Ring now I mainly dive a single 120. Eventually I want to dive doubles and I know the 65# wing will be ok. My question is.... Should I switch to a smaller wing for a single tank, or should I just get used to diving the 65# even with a single tank? I dove the 65# one time with a sinlge tank and I'm not sure if it's too big. Some suggestions and help would be greatly appreciated in this matter.:bonk: