In my opinion...
LA-7: 4 points
TYPHOON: 3 points
YAK9-U: 3 points
P-51D: 3 points
190D-9: 3 points
F4U-1D: 3 points
109G-10: 3 points
P-38L: 3 points
N1K2-J: 3 points
P-47D-30: 3 points
Perking these 10 planes would shift the MA into a mid/late 1943 environment.
The F4U-1, P-51B, La-5FN, and the P-47D11 will be the four fastest fighters at low alts at military power, and F4U-1, P-51B, LA-5, Fw190A-8 would be the four fastest on WEP.
There's a much bigger chance to see people using various fighters, which before, have been ignored by a lot of average pilots for the reason that they weren't fast or maneuverable enough against 1944~'45 planes.
The survivability of the P-47s will be vastly enhanced, and since some of the 'super ground attackers' with 2k payload + rockets, have been perked, it would truly live up to its name as a great and fast ground attacking fighter-bomber.
The ol' N1K2 fans will probably just move on to Spit9s anyway. We'll be seeing a bit less N1K2s, but more Spits.. but no special harm done here.
The P-51D fans would shift to the P-51B.. which has a little less ammo load, and weaker jabo capabilities. We'll definately see less whinings about 'cowardly runstangs' who come in at 20k to do a single bomb drop and run straight home after.
The F4U-1 corsair will also start to shine out, but it will of course, be limited in jabo capabilities, compared to the C-hog and the D-hog.
La-7 fans can comfortably ride the La-5FN, since it shares simular characteristics with the La-7, and is still among the fastest non-perked planes .. but the speed difference between other fighters will be a bit less than the La-7: meaning, it'd require some more careful flying, and also, people won't be whining about La-5FNs much.
Also, some planes which only a few people rode just for kicks, might come into real recognition: such as the Bf109G-2, Bf109G-6, Fw190A-5, Fw190A-8, C.205.. which will be vastly enhanced in survivability and versatility. More variety IMO, can be expected.
Also, some jabo planes which people neglected before, could become very appealing, since the planes that were very fast, and also carried huge bomb loads will be perked. Planes like the Mosquito and the Bf110G-2, Fw190F-8 might be able to get more usage as preferred jabo ride of choice. When the 10 planes are perked, the Mossie and the 110, F-8 can all be considered fast planes...
The 3~4 point perk price would also be adequate. It'd be a super cheap price for the 'experten' who amassed massive perks, and won't bother them from riding their favored rides... and also, it is not a very heavy burden for average/low-skilled pilots, too. Work a bit with other fighters, and they'll achieve 3~10 points easily in a single day. They'll get a chance to ride better planes soon.. and if they are shot down, it's not like losing 200 perks. Just barely enough price to control the numbers in the MA, IMO.
If those 10 fighters are perked, the planes people will use, will be at 310~336mph range at deck speeds, where many many previously neglected planes can be used. The one single problem is the P-38L, which doesn't have an earlier variant..
With my suggested perk setup, I think we can see more variety, less whining, and satisfy the people who want to fly fast monster planes(perks very low for the experts), people who want to fly planes they want without too much of a burden(low perks - not really too much of a burden), and also the people who want some plane numbers regulated(3 perks is not too high, but still needs some work for the vast majority of average/low-skilled players who take up 80% of AH). Also, my suggestion will give some great expert jabo planes(Mossie, 110G-2, Fw190F-8) their role in the MA.. where currently they have no place at all, since almost every USAAF/USN plane can carry loads of rockets+2k load.
ps) also, the survivability of bombers will go up a lot more!
