I get a lot of questions for some reason these days so I figured I would do some quick no BS videos as a response. This one is for:
Smooth Border Edges in Zbrush : By default zbrush's smooth brush does not effect border edges for whatever reason. Changing the "Minimum connected points to smooth" from 3 (requires a vert shares 3 edges to smooth) down to 2 or 1 will do the trick. Enjoy and if you have other questions... figure them out yourself :)