Slowandfat decided to be an idiot a year ago and did a teardown/polish job on my tanfo witness elite and install an extended firing pin. Other mods that seem unrelated is the henning flat trigger.
While f'ing with the gun I broke the long leg of the sear spring. The gun works except from slide lock the hammer follows the slide forward when the slide stop is released. I pulled the firing pin block and the problem went away. Promptly forgot about the problem and have been shooting the thing just fine for the last year. Now I'm signed up for a regional match that has an equipment check (it's idpa - firing pin block needs to function). I thought the issue was the sear spring maybe so I replaced it and put the firing pin block back in. The problem returns. The firing pin block functions correctly in that if I push it down the firing pin is blocked when I push in on it.
Gun current state with block in. Hammer does not stay back when manually cocked. Hammer stays back when slide is slowly racked but follows the slide if racked normally. Safety does not engage.
Gun state with block out. Hammer stays back when manually cocked. Hammer stays back when slide racked. Safety engages.
What the hell did I do and how can I fix it so I can run this thing with the damn firing pin block?
Your help is greatly appreciated