I have been doing more spit-flying since the new patch as well. I most often fly against them, and I think in that realm is where you can really see the changes in the FM. I am of the thought that they don't hold E quite as well in tight turns since it has been a little easier to pull lead and smoke them under the same situation as in 4.09 (FMB Tog-gun style setups).
Granted, I was of the thought that the Spit was over-modeled before, so I feel the new patch has created more of a level playing field. The exact flight dynamics of the aircraft may be a bit off, but the balance of force is not, an abstraction for the sake of overall immersion. I find this more with the older spits, since they should be far from uber planes, they should be breaking even at the most, as we all know they were getting chewed to pieces over the channel during circus operations and such.
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