Practice... Yeah, I know.
I was just hoping there was some clever trick in the collective knowledge pool.
I wonder if it'd be easier if they just made blank backing plates.
Then I'd just drill them myself wherever the bit would fall.

Dr1: We fired up my G-26 on the Sopwith today for the very first time. We choked it, primed it, and God bless it, that engine lit up on the absolute first revolution of the starter. It was a good feeling. Took 30 minutes to run the tank dry while breaking it in in the shop. Another week, and I'll be patrolling the skies looking for you.... [8D]