Unless you have some hypersensitivity I wouldn't worry too much about sides from 250 mg a week of test. The dbol maybe, but even that is a fairly low to moderate dose. What I would be concerned about is getting too strong too fast with past rotator cuff issues.

One of the biggest problems I face when on cycle is pacing my muscles not to outrun my joints and ligaments. With even 30 mg of dbol/day you should see increasing gains in strength pretty rapidly. You can easily tear something up once you get to or past that genetic potential if you aren't careful.

Just don't push it too hard (I know that's not the norm ) until you know what your body can handle. As you've found out, an injury can put you out of where you want to be for months if not years. I know the feeling of wanting to get back to where you were and past it but don't get in a rush.