Ki84 is one of the best planes in the game, perked or not, but it is not easy to extract its best performance.
Just so eveyone knows, I love the Spit V, and I have no idea if it is overmodeled, but what I do know without a shadow of a doubt, is that with 16+ boost the 109F (even if it is at a '42 rated boost level) is not an enjoyable match, while those two planes with the Spit V at 12+ is the best in the game. The 109G-2 has a performance edge that makes it a good match again, but in a '41 set....no G-2.
Think about it this way, dont we all hate timid high alt snore-n-bore fights that usually go nowhere until several other show up to the point you cant dodge all the snore-n-bore attempts anymore? This is what results from a 16+ Spit V and a 109F matchup, the 109F has ZERO chance unless it has a substantial advantage. This results in wide spread timidity, and a vacant CT for that week. Who wants that?
So, to sum up:
I agree the Spit V was cleared for 16+ boost in '42
I agree the 109F is also at a '42 boost rating
I think that if the next version LW planes, the 109G-2, 190A-5, or C.205 are present the Spit V is no issue
I know the 16+ boost Spit V and 109F matchup is one of the worst in the game, whereas the 12+ Spit V vs 109F was the best.