Im at work right now so i cant try this BUT is it possible to lather the fat using cold water, in prep for a cold water shave??
,,,I'd say so just make sure you sit some water on the pick for 5 mins or so.
I have never soaked my MwF, always soak the Omega Boar I use though... wonderful stuff that soap, and I imagine the soaking will depend on how soft or hard your water is. Good luck and enjoy.
Dont suppose you guys seen any video footage on lathering with cold water?