I would vote for the GP Dr 1 . It flies great with a OS 70 , balances with no added weight in the nose. I have Two of them, bought a second for a spare. They were on sale. I had a mid air with a Jap Zero. It took out 16 inches of the top wing. It flew strange , but I was able to land it alright . It takes off in about 10 ft and It lands so slow. You must use rudder to turn with the alierons, or just mix about 30% of rudder to your alieron. I call it my flying step ladder. I have other DR 1 that are very hard to land and take off , but the GP Dr 1 is so easy on take off and landing.