Very true, but spit5s and seafires (spit5s with 240 rounds) can be quite potent against Ju88s as we learned in the 4th frame of BOB'06 (was it '06 or '08? The what-if frame). Give them Spit5s and hurr2cs and it seems quite the jaws to send those poor Ju88s into. F4Fs are no slouch for hunting bombers, either (as long as they can catch 'em, that is).
Balance wise, you have C2s which I love but will be mostly ineffective (guns package), 110Cs which will be dogmeat up against Spit5s and hurr2s, and the 109F, which will be somewhat capable but outnumbered by better turning planes or planes with more cannons.
Don't get me wrong, I can see it working both ways, but I'm thinking the balance is tilted towards the allies if the hurr2c is thrown in there.
Food for thought, that's all.