Are bongs/waterpipes counter-productive?

[beachguy in thongs]

I don't figure that. I believed otherwise until I read the study.

Edit: Nevermind, I read it wrong. And so did you.

I said joints lose less THC. BUT, if you think about it, I don't see how it makes sense, since a joint is continually burning, and bongs tend to have less smoke escape the bowl.

Hey, steamrollers go out as soon as you release the carb and suck in the smoke.
Except, a little bit, if you pack the bowl more than you actually need.