I have been using this stock 3 for past two years. I put all the cool parts in it when i first got it, no issues, and just shot it and changed springs until now. The last couple matches ive started having to pull the double action 2 or 3 times to get it to go off. Single action has always worked fine. At first I thought it needed to be cleaned, didn't help. Replaced the hammer and firing pin springs, didn't help. Removed the firing pin block, didn't help. Today I took out the bolo and put back in the factory interrupter and had 20/20 go off in double action. The only fitting I did on the bolo was removing .007 off the bottom to try to fix this problem. In double action the hammer goes back .08 farther than before but that didn't fit the issue. Ammo is using federal primers sitting .015 ish below flush.
I have a new sear spring on the way to see if that makes a difference. Both the bolo and the trigger bar don't appear to have any obvious wear that would be the problem.
Right now im leaning towards ordering a new bolo, because taking that out eliminated the problem. Anyone better at this than me have any ideas I should look into?
-1 piece sear
-extended firing pin block
-henning firing pin
-12 lb pd hammer spring
https://photos.app.goo.gl/TLzzzUyC9EjqjFM67 - trigger bar
https://photos.app.goo.gl/ybA7mYrp9mUymyum9 - bolo