me i have the bong attachment on a straight zenit tube, my down stem is wide enough i can get the sublimate the whole length of it. When i want to get retard high, i grab my sublimator . Usually i do two doobies to start the morning then on to the sublimator. It makes me eyes feel all red lidded like i was awee young lad again..... get one you will enjoy it. Kiinda cool to smoke herb and it be like a hit of concentrate. when you hit the sublimate whamo blamo liamba congo mixer puff puff pass
here is a few pictures.
I took some velcro and attached my heat dial to the bottom of my coffee table where the sub sits, i usually use it alone or with one other person, so the velcro keeps the dial from slidding around and getting bumped around changing your temp. there's a pic of my down stem after i cleaned it and what i got out of it is sublimate. fall is here.
ps mine was one of the first 5 proto types so it looks a bit different then the new ones....