surgery or prevention and maintenance

Hi everyone,
I have a suttle anterior instability which has resulted in biceps tendonitis and is believed to have attributed to compression of an ulner nerve. No diagnostic imaging tests have shown any tears or signs of instability. The MRI I had done 4 years ago did not show any tears in the GHJ only slight abnormality of the humerus. Initially they thought I had a SLAP tear but the MRI proved this assumption wrong. I've had two ultrasounds which have shown slight thickening of the biceps short head but my pain is in the long head of the biceps.

I have opted for the conservative option for the last four years. I still get intermittent flare ups and this is complicated by a tight thoracic. My physio has been working on releasing the thoracic and has been a strong focus of my treatment. Getting more movement in the thoracic is also something
I have been focusing at home by using the foam roller to release it and I have started pilates. Strength wise, I have been working on a hypertrophy program 2 years for the last two years. Prior to this I had been using a theraband for 2 years. My scap stability is better but not great and my bicep still tends to flare up if I aggravate it by too much dancing.

So my option is to either 1) consider getting a surgical consult. I'm pretty sure the surgeon will say that I'll need a MRI and if that doesn't show anything, he'll suggest the option of an investigative arthrogram and if during the procedure they find the problem they'll fix it and tighten the capsule. I'm not particularly keen on the option because it is purely investigative and if they don't find anything then I'll still have to go through similar rehab and there's no guarantee I'll regain my ROM or 2) continue just working on prevention and making sure that I continue my scap work. This will be something I'll have to continue for the rest of my life because I've been told the instability won't go away.

Advice on any other potential options is greatly appreciated.