Missed a (way) earlier post/question on metal left after the filing/metal removal is complete. Sorry. Still figured pictures might answer any future questions.
Pre B CZ 85 still nasty/dirty from it's previous location/user.
After metal removal and cerakoting. Not to the same scale, but you can increase the size of the second picture to look closer.
I did remove some additional metal from the two posts in front of the grip screw holes as I didn't want the mag brake pressing against the back of the magazine and holding it in the frame (mags. are supposed to drop when you hit the mag release button, you know.) You can't see much difference, if any. Doesn't take much clearance to make things work.
I took the parts out of my pistol, filed, sprayed with carb cleaner (it was nasty inside anyway) prior to doing a fit check and then I'd file some more and do another carb. spray blow out and fit test. I repeated till I got it right (clearance plus enough to make me feel good about the cerakoting not causing issues if it builds up any at all). Then I sprayed it good with rem-oil (carb spray or brake cleaner strips all the oil off the metal surfaces and rust is ever ready to jump in and cause you problems).