You're going to have to find people that don't mind putting themselves in certain situations. For example, a 109K is going to always out climb a spit 5 and sometimes, they need to be man enough to start below or not go vertical at all.
I had some great fights with Perverts 190D9, I knew there were certain things that would immediately end the fight for him, so I often purposefully gave him initial angles knowing that I would never expect a 190D9 to turn back into the fight in the MA. I had a really good time and it isn't so much about winning or losing, it was just nice to see a master in a 190D9 give that airframe the work out it deserves!
I know I'll also lose vs a Ki84 co alt, after all, it IS a P38 with training wheels.