I don't use MWF as much as Tabac, AoS, Proraso and Speick, so it can sometimes go 10 days without getting used. I went into the bathroom to whip up some MWF and I noticed that the puck is shrinking. It used to fill the whole bowl, and as you can see, there's probably 6 or 7 mm between the bowl and the puck now. It's in a cheap wooden bowl from Amazon, but I wouldn't think that would make a difference. Anyone had experience with this?