How about a combination of ideas? Timer with ENY-limiting for the large team? Let me explain..
Say the rooks (I'm a Rook BTW) had the numbers they were havin a week ago, 50+ advantage at the least.
Say I up in a 110G2, and suffer a case of smoking hole syndrom.
Bam, five minute timer. Now, with the timer in place, I cannot fly, say, planes with less than 25 ENY value. As the timer expires, the limit slowly fades away, until I can fly anything again.
Best of both worlds, I think, as it penalizes the larger team, though not permanently, and it makes being grounded during 'time-out' optional.
It also makes alot of sense realisticly. Would the brass let you take up a shiney new Dora after you turned the last three into lawn-darts? No, they'd stick you in the Emil that's been sitting in a cornfield with the rats from NIMH living it in.
Ok, brain-storm mode off, please dont hurt me, especially if someone already suggested this.