Dryland Shock (stretch) Cord Training

I am currently doing daily PT for an inflamed tendon and I have a series of exercises using shock (surgical tubing, bungie, stretch....) cords to strengthen the shoulder. The shoulder does feel stronger and the therapist is happy with the results. I have had to expand the drills to both shoulders for balance and strenghtening. I like the cords because they travel well and sometimes the travel schedule prevents me from getting into the pool. I am looking to expand the series of exercises to strenghten other muscle groups and was wondering what drills if any others might be using. I see the value in doing reps that mimic swims and am currently completing the fly pull to the recovery point and doing a similar drill for *** both for the pull out and for the actual sweep. It looks like stroke counts for 100s would be a good way to determine reps, one can push a few reps past the piano. Any others out there using these things for their dryland training? Thoughts? Thanks Don