True, the inflight is the most valid comparason, but is also the hardest to quantify & measure. After all, bench testing is really just estimates & forcasts of inflight performance.

Geared glow... I'd love to get one of ya'll machinists to slap out some Clampy Plate Spur Holders for surestarts. Would like to swing the big lumber for the bombers..... ok, 8-9" or 7x4 3blade aint that big, but its the thought