well, i finally got around to it.
i baked them in my toaster oven on foil at 275 degrees for about 15 minutes. they popped right off. on 4 of the rims i used rubberized black CA instead of regular thin CA, and i had to scrape it all off with a screwdriver and hobby knife, but the tires came out fine.
the trick is to let them sit for a while after you turn the toaster oven off, and then when you take them out, let em sit for a few so you dont damage the tire.
both tires and rims were fine after the process. the dried rubberized CA on the tires prevented a perfect refit, but then again, that will teach me to use black rubberized CA. the rims with regular CA popped off like nothin.
PLEASE NOTE if you are thinking about trying it, 350 is a bit high. i melted a set of tires the first time i tried it!! well, not melted melted, but started to melt, and ruined the tires. maybe in a regular oven its fine, but in a toaster oven being so close to the heating elements was NOT a good thing lol
now getting the smell out of the toaster oven is a whole different matter lol