Well IMO the problem doesnt lie with the giving the ganged country perked planes, it lies within the 3 country set up.
IMO it plain ole sux, and doesn't work.
The results are that one country tends to get ganged and the other two pick over the remains of the ganged country in a race to get perk points. By that time, it has long since become no fun at all for the losing country.
If yer gonna talk about a fix, consideration should be given to a fundamental change in the 3 side setup. I believe it may result in less milkrunning; more singleness of purpose; and there may be a lil something for everyone eg. the furballers and the strat/buff types.