The C OF G That is recommended for first test flight is at 2 inches bottom wing's root. The recommendations is from 2 to 3 inches as you progress and getting used to its flight characteristics. My ARF (ULTIMATE) is set at 2 inches. I needed to add some nose weight.
According to the first test flight first landing was very good. 4 flights, 4 good landings. But had experienced other problems. Mainly with servos.
Saito 120 ran flawless, also it was new.