Don't have my PC at the moment so not 100% but this is what I do IIRC.
- Use full rudder/yaw (opposite direction to the lost wing) this will help correct the roll.
- Slow down, get your speed to around 190kts as quickly as possible.
You'll regain control at that speed, any faster/slower it will roll.
- Once level use the throttle to nose up/down (More power = Nose up)
Use the stick as little as possible and don't forget the speed
-Payload, I leave it on, I see It as the intact wing is producing lift trying to flip you, so more weight should reduce this. (correct me if I'm wrong)
-Landing, try to resist the urge to slow down keep it above 180kts.
Some quick tips off the top of my head, so feel free to correct me on any of this.
Speed is where most get it wrong as theirs little margin for error'.
Hope this helps and good luck.