Short of it is I really messed it up last November doing wide-grip pull ups. It ached for weeks and I avoided directly working it until it felt better.
Flat BB benching still causes that shoulder to tense up and burn fiercely. It fades pretty quickly afterwards but I don't like how badly it hurts until it does... fatigue is fine, sharp stabbing pain usually means something is wrong - don't do that.
Dumbells are ok. It doesn't throb nearly as badly but I've lost 30 pounds off my barbell bench by neglecting it and don't like that.
If I go to two inches above my chest, I'm fine. I suppose if I made my pecs two inches thicker things would work better.
So, what's a good way to work my chest without frying my shoulder (probably the cuff?). I get a little twinge in it back squatting as well, actually, but nothing serious. I do cuban presses in an attempt to rehab/prehab but it hasn't helped much yet.