Nice.
When I make QWISO i use either 91% or 99% Isopropyl alcohol. I freeze the iso, glass jars, and materials before hand for at least 24hrs. I'll do 2 washes of approx 25-30 seconds each. I filter that thru a non-bleached coffee filter to get rid of some impurities. Then pour it into a pyrex pan. I use a good fan, and just evaporate off the ISO that way. The first several hours are intense, so make sure you have plenty of good ventilation when doing this. After about 4-6hrs you shouldn't have any more fumes. And depending on your fan and setup it can take anywhere from 8-24hrs for all the ISO to evaporate.
Yeh in vapor PG = throat hit, VG = billowing clouds. I'll have to mix up some different ratios and see how they do. I know after a whole tank pure PG starts to get a lil harsh.