Thanks, OP.
I was afraid to ignore the hole as the center lines drawn into the fiberglass line up with it. This is the same CMP Hellcat that I think you got. Even though I'm writing a review for RC Report on this plane, I'm going to use 2 elevator servos. What do you think about the wood dowel pushrod set up for the elevator? I would also be interested to know what engine and radio you plan to use.
SS