EMVIN put together was an easy. I used Hitech servos all around. The elevator servos cutout was a tab bit big. Other than that the plane was a breeze to put togther. If you read through prior pages, a little nose weight might be needed. As I told you I have a os 160 with battery, gas tank, all way to front and still had to add about 4 oz of weight. I don't know the weight difference between the Saito 220 and the OS 160