I have the kit in my G17.I have had a few light strikes but I attribute those the the ammo,WWB because I had light strikes with that ammo with the stock trigger.Last year at a major IDPA match the gun triple fired and then jammed,I and others who know more than me suspect that some debris lodged between the striker and the channel and caused a slam fire.I have put maybe 1,500 rds through it since and it has not happened again.If there are any doubts about this forum member Gunsablazing was a witness.And BTW the 3 rds were dead center in the 0 zone.