You may want to also try a 12x5 prop. On my .46 TH equipped 40S, the 11x6 makes this a VERY fast airplane, almost too fast for a biplane. Several people have suggested that I lower the pitch to bring it's speed down a bit.
If my Pitts muffler comes in this week then I give that a try. I'm not looking for ultimate 3D or a rocket ship...lol I just wanted to be different and have a enjoyable experience while flying.
I'm not saying anything to make anyone upset BUT, I can only stand so many of the same planes at flying fields at one time.. lol