I think a lot of has to do with the way the lock is tuned, I just put my trigger in, the first time I put the pin through the trigger slightley above the sear arm and 3/8" from the contact point on the sear, trigger pull was very light and a very long trigger pull, (not acceptable) so I filed down the tumbler till it worked pretty good, except I didn't put the fly in the tumbler when testing it and broke the half cock notch in the tumbler. Ordered a new tumbler and sear from Track, put it in the lock and moved the hole through the trigger from 3/8" to around 1/2" (moved trigger ahead) might be a little stiff with very little creep. I will polish the contact points on the sear, tumbler yet. For me it seems it is a hit or miss. My other guns are about 1/4" to 3/8" from pin hole to sear arm and worked good the first time. The locks are deluxe silers. Looks like you guys did it right the first time. chuck-ia