Next PT appt tomorrow morning. Yesterday at the dojo, showing finer points of some of the techniques in our katas and i had chambered my repaired right arm and out of habit and thousands of repetitions after the left arm blocked and trapped i threw the right punch, slowly of course demonstrating the move but i had to stop and say holy shit, i can retract and extend the limb slowly and controlled but i can do it. the stretching by the PT is working as it is supposed to.