Guy's, new here, but have a question. I have a Model 66 and 625JM, The 66 I've been shooting for about 3 years, and suddenly I have intermittent light primer strikes, the 625 is about 6 months old, put a longer firing pin in, and a spring set, it was also having intermittent light primer strikes, so I put the original rebound spring back in, but still getting light primer strikes, use only Federal primers in both revolvers, help, this is embarrassing in a match, thanks, Allen