The only one I've ever owned is the moss, and like Obie said, it is small by design to keep the lather warm. It does a very good job of that IME. I lather in a separate bowl that was designed for that purpose. One of those that SRD sells where the lip of the bowl folds over a bit so lather won't go over the top. I love my Moss but if you are in the USA shipping from BC is high and it isn't really any good for lathering..... AFAIC.