my 2 cents on this perk idea... I fly the C.205 mostly and will not be affected by disabling or perks unless HTC decides to re-evaluate the C.205 into ENY value of 10.
I think it would work... we have seen it work before with the F4U-1C. It was flown quite a bit until it was perked. It did encourage the players to fly something else.
On the other hand, Perk point multiplier however seemed to work when it was first introduced... but lately it does not seem to have an effect.
But then again, what do we mean by work? Encourage people to change sides or fly a low ENY value plane (and thereby lowering the offensive capabilities)? These two are a bit different imho.
What we are trying to do is encourage people to change sides. Like Nobaddy mentioned, the perk cost idea will not achieve this purpose (although I support this idea). Plainly because it does not encourage people to change sides! It will, however, on the long run make it easier for the players on the lower numbers because it will encourage the players on the larger numbers to fly a high ENY value plane. The perk point multiplier failed because the offensive capabilities was not encouraged on the players with lower numbers because people generally do not fly perk planes!
Disabling planes, imho, opinion is not a good idea. Does it really encourage people to change sides? I think it encourages people to log off, therefore it does not really acheive the purpose HTC had in the first place.
Of course, it has only been just a day since this has been implemented... I guess time will tell more...
just my 2 cents