Usually don't the PTs tell you what to do, not the other way around?
That would be a mistake. You want to drive the program and have them raise the appropriate caution flags. Otherwise they're likely to be conservative and you never get to where you want to be. Also, if I'm going to push the limits I'd prefer to do it while still under their care and not after they send me off on my own.
That's a good point. After my 1st shoulder surgery the PT I worked with saw that I wanted more than just to get back to a subsistence living level and cooked up an incredible variety of exercises for me. After my 2nd shoulder surgery (other shoulder) I ended up with someone else who seemed to think her mission was to get me to a level where she could send me out the door asap. And just about at the end of her program I re-injured the 1st shoulder. So far it's "not as bad" as the original injuries so I haven't gone to see the surgeon and am doing my own thing to strengthen everything in the area.