To fill up a large tray of boolits for baking, it usually takes as many as four go-'rounds with the powder and BB's in the #5 bowl. Too many boolits and you get coverage flaws. I've noticed that the coverage improves as you progress, so I've started PRE-CHARGING the mix by violently swirling the bowl for as much as a minute WITHOUT any boolits in it before the first shake. WOW! Excelsior!! Great coverage first time. The mix obviously loses any static charge it had when sitting for a few days on the shelf, and the more you shake the more it builds up. Pre-charging seems to be the way to go, at least for me. YMMV.