The way I learned to use the type of scuttle you described is to put hot water in it. Stick the bristles down in there. Pull the brush out and load it on the puck ...... the puck is not on the drain holes ...... now either face lather or bowl lather ..... lay your brush with the bristles on the drain holes. That is the way I believe the thing was meant to be used.

I get better lather with a bowl than face lathering , but that is just me. Plenty of guys do it the other way. Whatever works best for you, long as you give different things a try, you can't go wrong.