I have been using the Volcano now for over a year. I find that the 6.5 setting is the best. There is some adjustment on that: You have to consider how dry your product is. Generally though 6.5 is where you start. The Volcano does tend to kick in rather later, as compared to just smoking. When the volcano does kick in, look out!
You know what is so cool about the Volcano is the most wonderful taste! Did you notice that? The product has a like herbal sage like taste. You want to lick your lips for more of it!
I know about the second buzz kicking in. It happened to a friend of mine who used it for the first time. He said 'this thing isn't worth a shit' The next minute he was totally couch locked!
The Volcano, is very different , worth it,oh hell yes!