Well, If you pack 0.3 bowls you'll get 11.6 bowls out of the 8th. 3.5/0.3 = 11.666666667. You can get 17.5 bowls if you only pack 0.2 in each one. Enjoy! Me and my friends always smoke 8ths in one night and get really high. You won't whitey either, don't worry bout it.