Currently, I have a Robert Becker scuttle the lathering area is 2" deep by 4 1/2" wide. It just doesn't seem deep enough, as the lather starts to come over the edges when creating the lather. Therefore, I'm now searching for a new lather bowl to use when I don't want to use the scuttle. By all your past experiences, what do you think the best measurements are for a shave lather bowl? Depth and width? Thanks in advance.