I don't know Wide, I have achieved victory against some very good P-47M pilots in the P-51 at typical MA alts, simply by sticking to nose-to-tail turning with one notch of flaps deployed. The 51 just seems to come around on the Jug eventually.
Jugs and the M/N in particular, rely heavily on their WEP. If both planes' WEP is expended, the P-51 has the advantage in almost every aspect (below 20 k)
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Add to that, the P-47M is more stable nearer the limits at minimum turn radius.
People underrate the ease of getting to the edge of the envelope vs. the edge itself. I think this makes a much bigger difference than the couple of % in turn radius/rate when stall fighting.
This reminds me of the old Mossie flight model with the wrong center of gravity. The Mossie has a slow turning circle that equals many fighters, but with the bugged FM any tiny misjudgment would send the mossie into the dreaded flat spin. I remember one very long, lower-than-treetops turning fight with an LA7. I feared augering much more than being outturned and preventing that required a tremendous amount of concentration. In a large fraction of the fights I simply killed myself with the nasty departure, which made me keep a larger margin of safty, giving up a fraction of the envelope.
With the jug you can go crazy on the stick and throw the plane right up to the edge of the envelope without loosing control. Good pilots can "push the edge" of the envelop, but in planes like the P-47 there is no need to push if you can just walk right up to it.
