I used to fly the PonyD exclusively and wracked up many a kill in it. The PonyD is actually great at stall fighting and can make many mediocre and noobish pilots scream. For a good opponent it would be a matter of turn into them, attempt a few turns, if they make a mistake press and kill them. And if they don't (the good ones don't) disengage, track out a few Ks, reset and re-engage.
I've killed several spits on the deck going verticle, flaps, rudder, chop throttle, etc but there weren't that good. A good Spit driver will kill a good PonyD for the sake that it out turns, out excellerates, etc, etc. Has the advantage in all areas minus top end spend, endurance and length of fire. I've killed many La7s this way as well, and F4Us, though it is a pilot skill level being measured, not the bird.
My two cents.
Boo