I don’t know about the Volcano specifically, but I do know I have noticed a huge increase in effect and efficiency since I switched to a dry herb vape. When I make I smoke I use wayyyy more grind than I do for the vape. It’s also nice having the freedom to “adjust” my high and tailor it to what I want out of my strain for that day. And like other users have said you get the bonus if the ABV which does a really good job of getting you stoned.
Except it’s not actually going to get you the results they claim to deliver…