AKRhino, I have a number of threads in which I talk about my shoulder and my successful rehabilitation through Jiu Jitsu and conditioning training. I know what you're saying. I was scheduled for surgery and after 6 month of Jitz my shoulder had never felt so good and strong.
My doctor said if it's not coming out, avoid surgery at all costs, only use it as a last resort for a shoulder that refuses to stay in the socket.
It has come out a couple times since I started its a year and a half ago, but it is seriously 95% better than it has been in 20 years.
Zog is already an elite JJ player, so JJ isn't going to rehab his shoulder, bot conditioning and other specific exercises can strengthen it. He'll know what to do, but that tip about keeping your hand in your back pocket is a golden secret I learned from my own JJ instructor, unfortunately I learned it too late.