When you do all the measurements for the cabinet and what not, do you have to remove the volume of stuff that goes inside? Like the XO parts and what not. I'm building the GR criterion kit, and I build the XO on a piece of pergo. Anyway the internal volume isnt very large, and the foil inductors are pretty large. Do I need to take into account the added volume of any stuffing/dampeners/XO parts/pergo piece/etc that are going in the box? Or is the volume not that critical?