I picked up my M9 from CDNN last week and have put 400 rounds through it so far. It's great other than the fact that it's painful to shoot. I find that it's painful to the knuckle of the right hand index finger. Although I've had this problem with all grips that I've tried the worst offender is the grip in the tutorials on this site. It's great for supporting the gun and stability but painful to shoot. At this point I'm open to suggestions. If I can't find a solution in the near future it's going up for sale.