I got some small SV soap samples to try them. For building the lather , I take an almond sized piece and spread it at the bottom of my mug creating a really thin layer on which I then load my dumb brush from which I removed most water until there is no soap left on the mug. Then I start face lathering, adding a few drops of water , brushing my face, adding again a few drops etc. A nice rich thick cream develops , and I continue to add a few drops of water expecting that there will be a point where it explodes to a big volume with long peaks but such a thing never happens. Instead the lather reaches a point where it becomes less dense and I am left wondering if I have passed the optimal point. Am I doing something wrong? How can I understand when my lather is ready?