I have a Bix n Andy, TT Diamond and Geissele 700. They are all great but the BixAndy is my favorite. I can adjust the sear and it greatly improves the smoothness of the bolt. The TT breaks like glass but has zero over travel. I like the slightest over travel after the break. The Bix is everything I like in a trigger. Every trigger will be an upgrade over a factory rem x mark tho.