Hey
Erice, what do you weight?
As you know I sail a 5.2 and have managed to turn it over a number of times. I break the scale at a full 175lbs and can right the boat in any winds I will likely flip in.
Just sit on the bows or swim them into the wind so the mast is at about 45 degrees to the wind and the hulls are at the other 45 degrees to the wind. My righting system in a simple line tied to the bar in the middle of the tramp. Toss the line over the high hull then a few wraps on the trap hook and lean back. As the boat starts to come up you have to climb the rope but like I said she has always came back over.
In your early hull flying session I would suggest keeping the mainsheet uncleated and if you get to the point of no return just dump the sail and throw your weight back. That will usually save you!