I mean that.... you yourself may not think you have changed but your mass of experience that defines to you what is fun and how you have fun has been added to with many extra years. Setting the ENY and arena caps back to "no effect" won't re-create the experience you had back then, since that's just one parameter of what has been changed by time.
That's why Titanic Tuesday is less fun than the single large arena was before the split. We've learned too much since then and so has everybody else.
Why, I remember when the P-38 had just one move (for 90% of the players): Immelman, repeat, and repeat. The tripple Immelman was what you saw almost every time, and if you couldn't shoot him before the second was done you would stall out and he was in position to bounce you. With the advent of the Ki-84 this changed and the P-38 had a challenger that could follow it up. With the Spit16 forget about it, the P-38 can Immelman all day and still the spit will beat it in the vertical.
So, using just this example: If you went back to the older settings you still couldn't just immelman 3x to beat an opponent. You'd be toast. Player skills, tactics, available planes, etc... have all changed.
Another example: Before the overgenerous docile handling they have now, F4us were rather unpleasant to fly and had terrible turn radii. Nobody flew them, save a few die-hards or folks upping from CVs. Now they're easy mode, almost.
To go back you'd have to also suggest limiting the planeset to only those found at "insert time frame here" and even then they still wouldn't be the same because you can't revert the game code to reflect that time either.
I just don't think it's possible, really. It might feed the nostalgia side of your memory, but everything else has changed and wouldn't reflect what you remember.
P.S. Some older maps were pulled because the game engine changed too much to handle them properly anymore. Mass dumps and discos were traced back to older maps in some cases. I'm thinking of some SEA maps and FSO/scenario problems, but it stands to reason similar problems exist with some MA maps.