Thanks
I've since rounded and polished the end of that set screw. There's no mark on the frame (I've done quite bit of dry firing), but I'll check after I fire it. The trigger on my CZ Phantom has both over travel and pre-travel screws, there is practically no wear where they contact the polymer ( it's been shot quite a bit).
Still, I'm on the fence about just screwing it in. The screw does not look as bad in hand as it does in photos, but my 45 releases the striker close to the end of the trigger's travel, so the over travel is pretty minimal even without the screw.
Regards,
Greg