I recently came off a shoulder injury so I'm a little paranoid about using proper and perfect form for any exercise that involves my shoulders.
I've started the SL program and incorporated dips to workout A and chinups/pullups to workout B (alternating) to my plans.
Bench presses or dips I definitely have no issues with, although they both have a bad rep regarding shoulders and I was worried about both (especially since I think I got injured last time doing them with improper form). Making sure to pull my shoulders back in both exercises, I have experienced no pain whatsoever.
However, after workout B I am feeling some discomfort on my shoulder. I don't think they were caused by OH presses, since I made really sure to follow Mehdi's advice and shrug at the top and I feel no pain or ache when I practice form weightless. But my shoulder does feel a little discomfort when I raise my arm in the front, which I assume is probably rotator-related.
The only thing I can think of is that doing chinups was what caused it, since my power rack (which I just bought) has a really wide chinup/pullup bar and I had my arms positioned wider than usual while doing the chinups, which I also probably didn't do with proper form. Does it make sense and should I go back to using a door chinup bar, or wide grip chinups should have no effect on the shoulders and I'm being paranoid?