i tried it earlier today, ill post pictures tomorow when i have my digi camera on me. i just wanted to see if it worked, so i used a smaller bottle and not much weed. from what i saw it was definetly pullin the smoke down, im just thinkin that if i use a lot more weed and have someone else light for me as i pull the bag down and then push up to inhale, itll hit a lot better