Has anyone tried running the cut vanilla beans and the vodka through a blender (like a Blendtec) at the start? I would think the smaller "smoothie" particles would give the maximum possible extraction in the shortest period of time. It should still filter out in a coffee filter and you have those left over specks to add to other things at the end.
I've not tried this, but when I saw the post about taking the leftovers and running them through a Blendtec, I wondered why not go that way from the start.
Hmmm, something to think about, Dave. I'll probably wait until the price of vanilla beans come back down before experimenting like that, though.