Training Keeps Getting Derailed, Advice Please

[bucket .]

[Mark Rippetoe]

If you have a RC tear, you cannot use dumbbells because you cannot control their position with that shoulder without a radical deload that will not permit a strength adaptation.

[bucket .]

Update: Training moving along nicely. The shoulder is improving with my improvised program. I've been pin bench pressing, dumbbell overhead pressing, chin style pull downs, seated rows & face pulls; in an effort to solve the problem. The latter 3 I put in to fix the imbalances that I theorized was causing my issue. The dumbbells are to get my left side to catch up to my right. There is a significant mass difference between the two sides.

I'm using the SS method on all of these, with the same style warm up and moving the weight up each time, 3x5 on everything but the face pulls. I started light on the presses, and am using 2.5lb jumps (each side) and am up to using 40s. 80 total is far less than my previous 125 barbell max, but my pain is nearly gone. I have up to 55s available. Once I achieve using those, I'll attempt to switch back to the barbell.

Deads & Squats still moving up on the NLP. 265 & 245 (3x5) respectively.

[bucket .]

Welp...new issue. Last night, which was a recovery day (hadn't squatted since Saturday) I noticed my right knee was really tight and upon inspecting it, I noticed it was quite painful when pushed / massaged. It seems that out of nowhere, I've developed some quadriceps tendonitis. Just like in life, it's always something. Current plan is to let it rest a day, as there is pain from 2" above the kneecap into the mid-quad, incorporate some isometric holds (the same method that fixed my elbow tendon partial tear) and then de-load some and work on strict form, TUBOW & or box squats. As frustrating as this is, no one said it was going to be easy. Gosh darn it.