A) That belt don't appear to be touchin' nothin, and the belt itself doesn't have witness marks so far as I can see.
A.5) If you absolutely have to remove material (I wouldn't), use jewelers files. There is absolutely no reason to go ham and get in there with a power tool. Slow beats fast here.
B) That safety wire job does indeed suck dog balls, but in fairness, that's not the easiest place to do a pretty job and sneak in your safety wire pliers.
C) Vented covers! Jesus wept, the money some of these guys must have. It's free to just leave yours off, or if they're really boss and you have to have them, make some spacers up and use longer hardware. Lots cheaper, works fine.
A.5) If you absolutely have to remove material (I wouldn't), use jewelers files. There is absolutely no reason to go ham and get in there with a power tool. Slow beats fast here.
B) That safety wire job does indeed suck dog balls, but in fairness, that's not the easiest place to do a pretty job and sneak in your safety wire pliers.
C) Vented covers! Jesus wept, the money some of these guys must have. It's free to just leave yours off, or if they're really boss and you have to have them, make some spacers up and use longer hardware. Lots cheaper, works fine.