I am not a doctor or a therapist, but, you need to be very careful with "your" therapy that "you" are doing. I had rotator cuff surgery on Jan. 31st ( I know it is not the same surgery as you had) and I went to therapy 3 times per week and after a short period, I decided I would do some of my own therapy and ended up with the therapist having to redo what she had gained due to overuse by me. It is not fun, but, you must not overdo it. One slip while fly fishing or an unexpectant quick movement by you to maintain your balance while fly fishing can do harm and damage to your injury. I know it is hard to not fly fish, but, listening to your therapist and following their advise will shorten your healing time. Just be careful ...........