My herb is far from been totally spent after 3 pulls at lowest temp, but the taste is changing very fast. If i'am using it at lowest temp, the ABV came in brown / light color. Temp sensor seems to be ok. But it's just that the popcorn taste is already here at the 4th pull ...... In my Solo or Indica (and in the Mighty of course) this taste came after MANY MANY pulls, many more than with the focus.