Every magfed marker (Dye Dam is probably the most reliable) is the same; hard on paint and unreliable.
I've owned the T15, TGROne, TiPX and M17. I could never go out and play without either smashing balls in breach or having issues.
A guy at the last walkon I went to had a T15... well, it was his 2nd... and he is returning that one too for a refund as if it isn't spewing air, it is killing balls.