Well, as far as practical usage, usually 3-4 people can get high from one round. Its amazing how you can actually feel it in your face by the time you breathe out if you ghost a hit (hold it til you don't even blow out that vapor) even thought it was just some shitty brick. Like you know how you can only get so high from smoking brick weed? Well, it doesn't feel like brick weed at all. You honestly have to try it to believe it, my friends all called bullshit and thought I was crazy til I made them hit it. It kinda is a creeper, like you can feel it in your face by the time you're done coughing, but you keep getting progressively higher for a good 5-10 minutes. At least thats how it works for me, and I'm not exactly a lightweight. Let me know how it goes man :rasta: