Even though most of the time it makes no visual difference i repair my stuff one at a time to keep the paint stat messed up.
Call it a badge of pride.... that no one else can see.... that makes my repairs take 10 times longer than it should..... even though it makes no visual difference ......
i tried to do that too but it takes considerably more than 10x longer if you have extensive damage, and i had it bugged a few times where i couldn't get some modules to repair individually: it simply did nothing ... so i had to resort to 'repair all' anyway.