Chris, after re-reading my own post - how could you interpret it the way I intended. I was not very articulate.
It's just that the 51G and F8F kind of represented the next incremental development of the 51 and F6F had Germany's new piston engine fighters created serious problems. Had the land battles been stalled at the Rhine I suspect both the P-51H and P-80 would have been introduced into combat in ETO by April/May... and the Ta 152H would have been picking up steam
I dont know I misunderstood you. What do you want me to say?