Go with the folks at KA Planes, they are very helpful and provide excellent customer service. I bought my CPD4 from them but not my Falcon 3D. At the time when the Falcon was purchased I was not aware of KA Planes. Any way, they have really gone above and beyond my expectations to help me as a newbie to heli's. We need to support stores like this so they will be here in the future. Just my 2 cents worth.