This may be a silly question but i was wondering how "tight" and how deep the biscuit is supposed to fit in its slot. I cut some biscuits tonight and noticed that there seems to be some play perpendicular to its length. Also the depth of cut seems to be off. In a finished slot, how much of the biscuit should be sticking out? A bit shy of 1/2 the biscuit? It seems that they fit very loose. maybe that is by design so there is room for the biscuit to swell. is there any standard depth to confirm that the cutter is set up ok? In other words, for a #20 how deep should the slot be? I have not had alot of experience with using biscuits as you can probably tell.