I got my EM crystals today. I put 1/4 tsp into 9ml's VG, placed the mix into a shot glass and nuked it until the crystals dissolved. I then immediately placed the shot glass in the freezer until it cooled a bit. None of the crystals recrystallized. I don't know if the freezer thing did it, but that's how we keep the sugar from recrystallizing in sweet tea.
All in all, the flavor is a bit week. I may see if I can get some more to dissolve in there tomorrow to kick up the strength a bit.