For pro chefs out there who have access to a sous-vide machine, if you need to soak a stone in under a minute, try vacuum sealing it in a bag with water. I've tried this with a Rika 5k and a Beston 500 and both worked a treat, even the very thirsty Beston! Its also fun to watch all of the air get punched out of the Beston in a couple of seconds.
I thought of this idea whilst using the sous-vide machine to compress fruit - watching the air rush out of my apple and the sugar syrup rush in.
I know its not hard to soak a stone, but I often find myself with just a few minutes to spare for a quick touch up between services.