I flew the GYA 553 in my Avanti. I was really impressed. It seemed to lock in better than the Aura 8 that I was using. I tried two different modes. One was Normal Gyro setting on Ail, Elev, and Rud. The other I used Norm on Elev, Rudd, and AVCS on Aileron. That was really slick. The AVCS mode on Aileron really locked the Ailerons. Extended KE in windy conditions was solid. I don’t want to take it out of the Avanti. I just may have to buy a couple more of these.