Phil I am like you not very good at the tuning but I fitted a tinbum kit into a tx I used to have no problem
really is quite easy if you watch the utube video on it.
What improvements has the tinbum kit made to your TX and what cal is it.
I go round and round in my mind regarding my gun, should I try to make it a smoother action, less sharp on recoil or is it just me. I have not picked it up for a few weeks, I think I need to spend some time with it again or get rid and forget springers.
Phil