I just started playing with this whole vaping herb with an enail thing, tucking a Vapexhale ELB in a male-female (extension) adapter underneath a MiniNail in female config. I notice that the temp has to be way up to start getting an effect.
I know the temp indicated on a PID display is "ballpark" at best, but I know with my nail set at 800F the air hitting the herbal material underneath isn't even hitting half that as I was just starting to get wisps.
The enail design of the unit I have is typical of the 16mm coils around a shank of Ti with a cup on top roughly the size of the large HE InfiniTi cup. It works quite well for low temp dabbing with a carb cap.
Hmmm.. Carb cap! Now, I know that the principle that makes a carb cap work is different, but still the temperature of the air is raised quite a bit because you're now forcing it along a constricted, longer channel alongside a heated surface. The carb cap heats up rather quickly, too, however this helps the heating effect even more.
Dropping a carb cap on top and then taking a long, steady draw, I notice the coils start to glow red. The mass of the carb cap is drawing heat from the cup that it's capping and now the PID is cranking up the duty cycle and putting some wattage into that Ti.
My eyes start to bug out.
Tfft! Pfft! Can't hold it! FWOOOOOOOOOHOLYSHITOOOOSH! A huuuuge cloud of Gasmask blows forth from just a pinch in the ELB! Sweet, sweet cherry with a deep, clean taste -- later examination revealing I must have put dark roast ground coffee instead of herb, but my thoughts were as hazy as the room at that point.
The air channels - they serve a purpose moreso than simple turbulence!
Ow! Damn that carb cap is hot! One idea may be to just leave the carb cap on without the attachment, but then no experimenting with simul-dabbing.. And I'm off to ECCC for the weekend, so no experimenting with rigging my SCS OmniNail (that has built-in channels!) until late next week
Guess someone else will have to experiment on that and take all the credit