It does involve some juggling.
If my wife is around I have her do the heating of the inclusion.
If not, I set the inclusion in the stump sucker and peel my clear. I keep it hot while I heat the inclusion with my left hand.
(All of my really good burns have happened at this point)
I then pour the heat into the clear and shove it in. I keep the hose in my mouth once I start to heat the inclusion.
Steve