You bring up a interesting thought when you bring up the power question and warbirds. A good example of this was during the Battle of Britan (and please correct me if I am wrong) The Me-109 e and Spitfire 5 were more or less equals until the FW-190 came along and the way the Brits took care of this problem was to put a uprated RR under the cowl. Now apparently being equal was OK with the Brits with the Spit being somewhat more manuverable, so did the Spit loose its manuverability or was the standard changed. Also, what does roll rate have to do with any of this? Roll rate doesn't equate to turn rate. I like the idea that manuverability is the ability to change directions faster, interesting way of seeing it. As to the question of what would you rather go into a dogfight with, a Mustang or a Thunderbolt, it seem sthat alot of pilots preferred the thunderbolt over the Mustang. Good discussion