Lots of great replies, thank you

I only had time for 1 sortie last night, so I took up a D Hog, and tried to defend 199.
I shot down a B24, although I seldom shoot bombers, but this was too good a set up.
Several other scraps followed with no results one way or the other. I had a couple of obligatory chases by LA7's but they are fairly easy to dodge in a turner like the Hog, gotta love those flaps, of course you then have to get alt back. Then I was about 10k and a SpitV dived on me he was about 2 k or so back, he followed me to the deck as I hit max speed on the Hog, (whatever that is), I thought my wings were going to rip off from the creaking and I darn near augered from the compression, I pulled out with about 50 ft to spare, and the SpitV was now D400, his SpitV5 icon was lit, and he was behind me and still gaining! I pulled up and took a slight blackout, and hit for the sky, figuring he shouldn't retain e like the hog. I wasn't to confident, I didn't know a Spit5 could outdive a Hog. Anyway I think he lost me in the blackout, as he broke off.
I got back to about 8-9K when I saw this 190 running on the deck, I dove down and gave a lot longer chase than I usually do, maybe 80 or so seconds. I was just going to pull off, as I figured he was in a Dora, and I was almost out of steam. Then the 198A8 icon appeared, I drooled as I though "hell, I think I can run him down! I shot him up at D400, and he went kaa-boom as he crashed

Poor Bastage, I almost felt sorry for him, but that is probably just because the Dr just changed my nedication.
By then I was short on fuel, and rtb'd. Somewhat content, as a 2 kill sortie is about what I look for. As I have often said, I suck as a pilot, but I am a decent hunter

The Ki84 sounds cool, it is certainly worth taking up for a spin or two.