We have Spit IX's, Spit V's, Typhoons, Mossies, and B-25C's vs. Bf 109G-6's, FW 190A-5's, FW 190F-8's, and Ju 88's.
We heavily bias the plane set to putting in what aircraft were actually there. Even if we didn't, there are no scenarios that have the same plane set on each side, so there are going to be disparities. However, in scenarios, it depends more on the mix of aircraft, the strategies and tactics of the sides, and that the fights are often many on many than how any one particular plane stacks up vs. any other one particular plane. In this case, the team feels it's close enough (consider Zeros vs. P-40's; Bf 109G-6's and FW 190A's vs. P-51's, P-47's, and P-38's at 34k alt; La-5's vs. 109K-4's; etc. -- and those work out fine in a scenario environment).
Also, I keep in mind that, in real life, folks flew these aircraft and did well in them -- so it can be done.
Me, I will probably be in a FW 190A-5 and have been flying them in the MA for practice.
