I have a new MD.40,and I've only put 60 rds through it.Other than a 7# trigger break it shoots very good. The major concern I have is the appearance of the primer after firing! It looks like the old fashioned keyhole,(the skelton keyhole).It is worst on the CCI Blaser primer,but it is noticable on WW and on the fired case that came with it.I would pull the firing pin out and check for a burr, but thougt I would see if anybody has had this problem(and I don't know how it comes out.) Any ideas.I'm trying to get geared up for ISPSA and IDPA,but I need more stuff.I come from the High Power rifle game and this hand gun shooting is new to me. Binski