I picked something else. What? A steamroller. I can pack a bowl, get it light and ingest every bit of smoke. Even when too much is packed, the effects of the tube don't push air through the bowl, causing it to lose smoke after you've hit it. Also, you can take a hit by lighting it once and it will slowly spread to burn up the rest of the herb. You do all that and then release for a huge hit. If you pack enough for a huge hit, you can get all of it in your lungs for it to absorb into your bloodstream through the large easily-passed wall of the lungs.