My modified LT-40 with flaps is ready to fly. The bomb bay pushed the servos rearward and the .56 Saito doesn't quite balance it up front. I found a weighted spinner at the swapmeet that nearly balances the airplane. My question (this is my first four stroke) has to do with the locknut. Do I put the nut/locknut/spinner combo on all together or do I use the spinner as a jam nut against the primary propeller nut?

Thanks,

Greg