I like your idea man...a lot of people forget that they don't need to keep filling bag after bag per chamber. 2 bags like u said is def enough for just me at a time unless its some really shitty budz. The only thing I do different is that I use a coffee grinder to grind all my trees before they go in my volcano and lets the keef to build up over time. Once im out of buds and need to get blazed, go to my massive vaped buds bag, grind some up, put it in the filling chamber, and top it off with a nice amount of keef to freshen and spice it up. It tastes almost identical to as if it was completely fresh grinded buds and gets you sooooo high =) hope that helps