I have a question about my Leap V2, 2014. I am (was) trying to replace the gas cylinder. The place I bought it from said it was a compression fit and I followed the instructions on removing the old cylinder. To make a very long story short, the piston kept going around and around and wouldn't come off. I took the seat off, and it turns out the cylinder is the chair has a tap for it to go in. The cylinder just turns very easily and doesn't seem to have any attachment. Is the part of the chair the cylinder attaches to, built into the chair? What I am asking is whether you can just pound on it like a compression fitting? Am a I toast? Thanks in Advance.