I am moving this idea out of RAM's F4U-1C thread. That one has too much BS that will bury this idea. Please consider my idea and suggest improvements or give honest criticisms. Please do not request that anything be perked in this thread, this thread is about avoiding that.
Yes, I know it is yet another F4U-1C thread, so shoot me.
Actually, now that I think about it, most of you already do.

Hows this for an idea, have the ENY values directly reflect the number of take offs by non-perk aircraft.
The F4U-1C would remain unperked, but ENY values would be changed to the numbers (using kills instead of take offs as I don't have access to takeoffs) in these examples:
F4U-1C: ENY 10
N1K2-J: ENY 22
Spitfire IX: ENY 24
La7: ENY 38
P-51D: ENY 47
Bf109G-10: ENY 53
Fw190D-9: ENY 56
A6M5b: ENY 65
C.202: ENY 1176
Have the ENY values changed hourly, or daily to reflect aircraft usage in the MA.
If the ENY divergence reflects their real usage, and the perk rewards are dramatic enough, maybe people would actually pay attention to the ENY values. As it is, the ENY values have gradually declined until they are no longer a motivating factor in flying that aircraft.
BTW,
It would be better to do this based on number of take offs with a given type, not its kills, but I don't have access to those numbers.
------------------
We few, we happy few, we band of brothers;
For he to-day that sheds his blood with me
Shall be my brother
Bring the Spitfire F.MkXIVc to Aces High!!!Sisu
-Karnak