I finnally flew my sportster twin. It took about 4 1/2 months to build using the RCM plans and a sportster kit. I built the 40 size plane with dual OS 55AXs. I built it according to the plans except it has dual aileron and throttle servos. I considered retracts but I did not have much room and I wanted to keep it simple. It flys great. It's a screamer. The first flight was really hairy getting it trimmed up. Now it flys great. I have about 10 flights on it.