A corsair should have NO troubles with a low spit..under any circumstances other than a 2-1.
after a series of false runs...they'll break turn every friggin time, and gofor the snap shot, or try to follow you back up the hill...
Get yourself set up for a guns solution on the 3rd or 4th pass...Bleed their E. hard rudder, roll over, and stomp on their head.
I know you're a good pilot Beetle, but this time, I think you let him dictate the fight..a sure loss if your in the hog...at worst, extend and escape and reset....chances are he'll be foolish enough to follow you...and make him pay.
Gainsie