Sorry to raise a 2 year old topic but I saw this the other day and I thought about it last night.
Last night I tried a tubular method of the machine with a glass mj pipe for the first time ever (I had only tried changa, sandwhich and lightbulb method up until last night)and it worked perfectly, I never realised the vapors could be so smooth and aromatic as opposed to how it is when burned.
I was really surprised after what seemed like a deep breath of oxygen to find the smoothest smoke ever expelling from my lungs.
On my 3rd pull (after removing a cigarette filter I had near the mouth end because it was restricting the airflow too much and I wasn't getting enough vapours fast enough) I started to hear a whistle sound. It sounds a lot like those old school kettles that whistle at boiling point! I found that if I kept the flame at that 'sweet spot' I could pull as hard or soft as I wanted without scorching the product at all.
Unfortunately this was my last dose until I get some bark, and due to the fact of the cigarette filter inhibiting large hits, I wasn't able to achieve a sub-breakthru' or anything like that, but I DID notice visuals like halos and rays around the lighters flame and some creeping of the floors and walls which is BOMBASTIC news for me seeing as I have been getting little to no effect the last 10 or so times I have tried with both enhanced leaf and freebase.
Ah, feels good to be on the right track... Now just for the bark to arrive!
Safe travels!
With every great plan comes the pleasure of patience. Take a rest, and grab a suckle off the teat of life!