ok i opened it up and took it all apart and *tried* to realigned it, I can tell this unit was never disassembled - I was pushing wood thread debris everywhere, upon reassembly it combusted on 10, swapped it down to 6, had a pretty good session, but i think i still have a major leak, the unit gets extremely hot, like 2 hot for me to do a 2nd bowl back to back and was getting uncomfortable hitting it. The avb is partially brown like the bowl/airpath is only getting heated 1/2 way.
I think I cracked it (unless someone already had).
I got my TM some time around february and I was always fairly satisfied with the device. The only thing was that if I loaded the bowl too fat, it would produce wisps at best. I didn't really think anything of it, because I was loading fairly light almost all the time.
Having seen your complaint, I started looking at mine and tried to figure out the airflow and what the pressure differences are in different parts of the assembly. So here is what I figured out:
This O-ring on the inside of the cover plate is the single most important piece of the device if you want good performance. The seal between the outside glass tube of the assembly must be tight with the top cap. If it's not, all you get are wisps of what the true potential of the device is.
As you can see, mine has something extra on it. I did not have anything suitable (like another O-ring) of the same diameter, so I grabbed a roll of thin gauge steel wire and bent a length of it in to a round enough shape to fit under the O-ring. This seals the gap up tighter and makes all the difference. You could probably sand down the wood piece itself, but I did not want to go that route just yet, as I was just experimenting.
If you disassemble the inside of the tube, like you would for cleaning, you can try this yourself. If the outside glass tube is rotating, IT'S NOT SEALED! I heavily recommend finding some way of sealing that gap up and you will see a massive (and I do mean a massive) improvement in vapor producing ability.
If this was already common knowledge, I apologise, but it's just something I stumbled upon and wanted to share. Share your results, if your assembly is rotating and you decide to try this out.
-Seepa