Makes sense. Wetter pucks do lather faster and a softened soap would enable any type of brush to work.I agree with all of that. Williams was a classic hard soap, the other side of the spectrum from the now also discontinued tallow Tabac (I haven't gotten to new formula Tabac yet). But I found if I gradually added the right amount of water to Williams, I got a good result, especially if I used it every day, and the type of brush didn't much matter. It was just more time consuming. I've been using another classic tallow soap, Cella, that is more or less in the middle. It is harder than Tabac and needs more water, but not nearly as much as Williams. It doesn't sound like MWF is for me, but I'll probably give it a try at some point.
Curious, how hard/soft is your old Tallow formula of Tabac? While malleable my new formula Tabac puck is pretty hard. For Cella are you talking about the red bowl that also comes in 1 kilo brick? Don't own any but recall other B&Bers referring to it as a soft soap so your Tabac sounds like it is pretty soft if Cella is harder.
My MWF set up FYI for when you give it a try via the links to the pictures below. Basically drop the dry puck (used roughly once a week) into the 3" diameter clear plastic container and build the lather directly on the puck - same as what I do with Williams in a smaller diameter mug. Let it dry overnight and place back in labeled black container in picture. Easier than Williams in-part because the larger puck provides more surface area for lathering.
Note that Connaught Shaving has MWF for 6.25 GBP or roughly $7 a puck plus shipping. Makes MWF a budget priced soap given the 4.4oz. puck. Red bowl of Cella for 4GBP or under $5. Free shipping if you order 60 GBP of items.
MWFSoap10_22_22.jpg
www.badgerandblade.com
MWFLather10_22_22.jpg
www.badgerandblade.com