Truth is, the D9 is strong in nearly every respect (speed, thrust/weight, firepower, ammo load, roll) EXCEPT turn. But that turn is awful enough to make the D9 not a good match for a lot of planes in a fair 1v1. However, in an MA where no 1v1 is left unmolested, and 5-1 is considered just enough, fair fighting is almost irrelevant anyway.