Yep that scaling thing works for me as well (if you were having the problem of morphs moving in  y-axis) Wish theyd fix this in zb3.1

About morph brush, its a cool little tool for when you just want to do quick edits on your mesh. Works esp well for fixing joints and poke through. I wouldn't use it for any serious morphing though, it's really too slow for that. And one very nice feature of zb is the nudge brush that lets you move your polys into better position without changing the surface itself. Works very well for organising your mesh while creating a morph. The masking features also help a lot.

And of course zb has lots of other tools besides sculpting so you can also create original content in it like clothes and textures or original characters.