I purchased a used Hanger 9 cub with a 80"wing off a friend of mine who got frustrated because he couldn't take it off. Everytime he gave it power it would turn violently to the left. I should have known better, because he is an experienced pilot. I am having the same trouble. The motor had left thrust in the engine from the factory, so we put 2 washers under the left side to give it a little right thrust like it should have had to start with and I am still having trouble. Any ideas or techniques from you cub flyers?? I know there is already a few threads about this but I thought maybe someone had come up with the magic solution. I have a friend that had no trouble on the take off twice. I don't have those skills evidently.