Personally I wish Voltus wouldn't be so averse to jet fighters.
I mean I'll try to make them less efficient in some form but jets fit my nation much better. Mostl because turbofans are much quieter than propeller craft and my elves have sensitive ears.
I don't mind nerfing them enough to make them fair for everybody else if there's some worry in it (technically jets aren't all that rad anyways but if people are still afraid I can make my jets even shittier).