Here is my method for MWF. I grate the refill puck into a 1 cup pyrex container, which I keep sealed when not in use. I soak my brush a couple of minutes, then shake out the bulk of water. I then "overload" the brush to the point that I'm able to get a ping pong ball size of lather in my scuttle. After this I reload the brush and go to the bowl and mix like crazy. The whole process takes 90 seconds at the most and yields a great lather.