Hold on a sec. Holding it in for 30 seconds isn't good for ya. But if you hold it for say 5-10 seconds, you will be more stoned than if you just inhaled then exhaled after done inhaling. I think it really depends on the volume of smoke you intake. THC absorbtion cannot be absored instantaneously, because that is impossible; there has to be a time frame. THC is just absored at a very high rate. If you take a massive bong load it will take your cells longer to absorb the THC than if you took a half-second drag off a little pipe. I can actually feel my self getting progressively more stoned as I hold a large hit of club herb, and I feel a change in my airway when I've absorbed the THC.:thumbsup: