Re: CZ-75 Upgrades
I am sure you would admit that a home gunsmith probably should not be changing angles on hammer/sear interfaces.
Get it wrong (it never should be absolutely neutral but a tiny bit positive and never negative) and you have a very unsafe weapon. I know the angles can be changed but the CZ75B is a tactical weapon and making it into a match level gun is probably not the thing to do. There are other guns that make better match guns than the CZ75B since there are few after market parts for the CZ75B, like match grade barrel.etc. A 1911 makes a better choice for a match target gun than the tactical design of the CZ75B because you can get a match grade drop in part for almost every part in a 1911 including a match grade barrel and bushing.
Anyway that is my opinion and yours may vary.