I used to right my I20 alone all the time using the above "Sit on the bow, put your feet in the water and wait for the wind to get under the main" method.

Pete, do you have small loops tied in the ends of your righting lines? I do, so all I have to do is hook my trap hook into the loop and lean back, after the boat is turned in the proper direction of course. Hands free righting!

The only time I could not right mine alone was in very light air, I finally flagged down a jet ski who lifted the mast tip up out of the water for me just enough to get it to come over.

If I had a plastic trash bag that would have done it I'm sure, but when the wind is up, I never have a problem, as the wind gets under the mast and lifts it up for you.