OK lip, I agree with you on one hand, because its just common sense, but think about a pipe that has been used for a little bit. It gets black, black, and blacker, same goes for your lungs...I mean its good if you blow out the hits quickly because everyone says that 90 percent of the THC is absorbed within the first 5 seconds...but your lungs are still gonna be black if your smoking all the time...So I would say its basically the same thing...What I would do is maximize your rips/hits so that you only take one good snapper or something then you hold it in for a few more seconds than 5 like 8..that way you will get a lil head rush ..but it will maximize the THC, and you wont have to smoke again, hence doing the same thing...and saving weed also!