92 has the simultaneous advantage of blocking all of the italian NO’s, holds egypt, and protects from sealion. The only problem with a 92 stack, is that u can’t grab ethe right away, but italy usually leaves it anyway. Egypt becomes stacked turn 1, and turn 2, u have 5-6 more planes flying in(unless germany goes for a sealion). Egypt won’t fall if you play smart. And this also can allow a turn 1 persia grab with the 98 transport if you dont need to stack algeria. The only times I do 97 now, is if there is somehow 100% zero sealion chance, french 93 fleet dead G1, or if Germany has enough air in range if 92, along with me not being able to hold algeria well enough with out compromising sealion defense.
The worst thing that can happen, is if italy stacks hard in alex, sudan, tj, and syria. He may briefly have Iraq for a turn, but since he gives up his navy for that(loses the chance for other NOs) I would take that trade anyday.