Another update. First day back to the gym today in over two weeks. I'll note that Vicodin certainly helped decondition my muscles fo' sho'.
I'm glad I picked HST to get back in the gym with because of the lighter weight selection and added frequency. It was tough, but my pec felt great throughout. I did some dumbbell shoulder presses and felt terrific. I plan to finish out 4 weeks (2 weeks 15's, 2 weeks 10's) before I re-evaluate my pec and figure out where to go from there.