This is how I usually sculpt:
-start with the multires modifier on 1 subdivision
-when I need more detail I increase the subdivisions
But every time I click subdivide it does weird things to my mesh. It add weird creases shaped like a crate around my mesh. And every time that happens I have to smooth it out manually.
Here is an example:
Anybody know what is going on?
Here's how my mesh looks like:
I had the same problem while sculpting the shell and also on every other project where I used the multires modifier.