I'd be all in favor of a 'dynamic perking system', or even one in which the ENY values were changed to reflect usage in the MA.
Don't think it would be to popular though, since it would lead to a "faster" arena. It seems that most people like to fly slow, turny planes like the Spit and N1K, which is OK since most planes don't HAVE to fight those, they are free to run. If the most popular plane in the arena was the La7, most planes couldn't run from it, and would have to fight it.