I've had 2 rounds of cortisone and then the MRI of both shoulders, the high rep didn't do it, the heavy weights did...not acutely - but over time...it wasn't rotator cuff, in fact, 3 docs were puzzled (they work with the Olympic team) and said it looked like a gymnast's film - tons of cysts(bursal), bone marrow edema, unstable connection of ball and socket in both, bursitis....well, still, at 47 jumping to chatturanga(plank) in yoga, trying to bench heavy weights, despite form, wear and tear happens.
Jari's stuff is ok provided you quit pushups, pullups, overhead presses...yeah, I know, I can hear you....I balked and ranted until I saw the pictures myself and realized my livlihood was at stake if I became disabled from pushups and chest flies!!!
Saw the physical therapy and have some great Y and T alternatives that I copied and mailed to a gal on VF , and would do the same for any of you that want them, - and I've not lost any of my rippedness...and I just change the exercises I can't do anymore....and I no longer use anything heavier than 10 lbs...which hurts my ego more than I can admit, but has been allowing my overuse to heal....