So a while ago I got my GGTS top tube permently stuck on a zatty g with a kick inside. After multiple tries from heat to various oils to vise grips nothing got it off the only thing that happened was I destroyed the finish of the ggts top tube I included a pic of the damage. So today I had a vamo 18650 tube laying around and stuck it on my GGTS and sure enough it worked, it is bigger than the original top tube but now I can use a 18650 and a kick if I so desired. Figured I'd post this cause I was pretty amazed.