I'm glad you're going to try this because I think it works great. I agree that using a good reliable oven thermometer is probably a good idea, bacause at 325 you are probably cutting it kind of close to the danger zone where you could vaporize something your don't want to vaporize. If your oven thermostat were off, you might not get the results you want.

As far as different strains being affected by different temps, I'm not sure, but I don't think so. No matter what strain you are dealing with, the compounds are the same, just in different proportions. So I think all the vaporization, decarboxylization, isomerization and extraction reactions would happen at the same temperatures, ragardless of strain.

Sounds like you have a good experiment figured out for determining the effects of different beverages. But one thing I've found is that different poeple react differently to the same exact mixture and amount, so some of the differences that the people in your experiment report might be more related to that individual's physiology than to the method of ingesting.

Good luck and have fun! Let us know how it goes.