This is wrong, right John and Katman? I thought 1.5 x .120 wall was the requirement. I suppose it might depend on what class you're in. What class did you look for Austin?
This is important to me because I have arranged to get a hoop bent in 2 weeks, and we're going to do 1.5 x .120. Also I asked him about the wall thickness thing, and he said that sometimes tube comes up .118 when it's listed as .120. His supplier for materials errs on the thick side just for this reason, so his stuff is commonly between .120 and .122.