I have a Gen 2 Timney in mine. I've put maybe 300 rounds through it since with no problems. About half of that was various manufactures of M855 ball which has been one of the main types reported to have light strike problems due to hard primers. None so far for me. The Timney is smooth, light, and crisp. Having said that I'd still like to try the Geissele and the ShootingSight/Tav-D at some point just to compare.