
But seriously - are you having trouble? There is an answer and it works.
Rx:
Roll 50 times in a session 3 times per week for six weeks. That's it! No pain no gain, you have to be dedicated. This will develop deep muscle memory, so when your brace fails and you're upside down, your body will automatically roll up - every time.
Notice that whitewater isn't really required.
Note: perfect practice is required. Get a good roll and then dial it in, 50 times per session 3 times per week for six weeks.
Do not practice bad form. Do ten rolls and then go do something else and then do five rolls, and then go do something else, roll, roll, until in a session you've done 50.
Note: take care of your ears and sinuses, wear nose plugs, use drops
Also: if you have back problems this isn't going to work for you. Enjoy paddling easier water where you don't flip and swim so much until you heal.
Roll 50 times per session 3 times per week for six weeks every season, and then roll regularly -- all the time after that. Are you sitting in an eddy? Roll. Gentle current? Roll.
Roll! Roll! Roll!