The wing bolt attach points were drilled tonight and a final plan for placement of the major parts is settled. The elevator and rudder servo go in the tail. That way I will eliminate the pushrods and will only have the receiver, battery and throttle servo in that huge radio compartment. If I decide to go to the slightly more weighty 91 four-stroke, I will only have to move the battery aft in the radio compartment a bit. If anyone wishes, I can send plans for the CG machine shown below. Three plates and an empty Ultracote roll lined up with the main spar(CG point)can be such a simple solution.