Yeah, all about personal choice, I agree. I personally hate holding hits in for more than 2 seconds or so (then again when you consider my average blunt pull takes about 3 secs i guess that's 5 right there, stoner math, haha). But I know ppl that do it for 10, 20 seconds and whatever. It's all good, I dont like it cuz i think it really does cause oxygen dep. which is why you get higher but that seems really unhealthy to me. I try to be as healthy as I can since I smoke about 3 blunts every day, I can't afford to play with my lungs more than I already am. I also try to work out about 4x a week, etc. to clear some of that shit out. And drink Vitamin C drinks if you find your lungs feeling really fucked, it REALLY helps after a day or so! I dont know if any of that was relevant to the first post but I'm high as hell and going off on tangents, haha.