Bubbagates, I did take the ball bearing out of the choke in order to use a servo on it when I first completed the Cap. It does (the butterfly) have a very slight up and down jiggle and I've flown it a few time that way....maybe I just got lucky...till now? Did you set your Fuji with a maunual choke or servo? If w/servo how did you deal with the choke having the ball bearing? I tried with the ball bearing and just could not get the angle to have the servo flip it. I do tape my aileron servos connection to the Y harness connection every time I fly, one connector seems a little too easy when I pull them apart, a new one is on order along with a 6v battery.