I would like to ask for help concerning a Tower Hobbies ARF Uproar 40. I have tried to balance the darn thing using a Great Planes CG Machine as per the assembly instructions, center of balance is 3 3/4 inches from leading edge. I can get it to balance and hold level, my problem is that when I push on the tail slightly the tail sinks. I have balanced a plane before and when it is balanced, you can push on the tail and the tail will come back to level. Is it possible that I might be missing somthing here, any and all input will be greatly appreciated.

Seaknight1962