i think the reason they work so well is because it's just constant powerful suction on the weed, and it just milks it for all it's worth, making it incredibly thick.

and also, it all enters your system at once (if you're cool enough, that is) and it works like shots of alcohol do.

as opposed to when your lungs get full and you have to stop to exhale (and you also lose smoke that way)

just my theory.

:thumbsup:

p.s. i took one earlier as well. it's been 4 hours, and i'm still high as a kite.

p.p.s.