I could have moved it towards the wing tube another 6" but chose to put it where it is in the photo. Moving it towards the wing tube presented problems with the wing bolts for me and I would have had to go to the next size longer servo extension. Two problems I avoided by placing the tray where I did. Plus I'm using two Ni-MH, 6v, 2600 mAh, sub c batteries, plus one Ni-MH, 4.8v, 2600 mAh, sub c battery for the ignition. With three big batteries I doubt if I'll have any problem balancing the plane.