- polish by groups
- polish by features
- mirror and weld
Using the hops exporter will ensure the result is triangulated and applied for zbrush.
In zbrush grouping via normals and then creasing with the zremesher set to keep groups and crease. Curve strength can also help in more complex situations.
Zbrush Zremesh 3.0 Hard Surface
Michael Pavlovich is a legend and just all around great artist. His zbrush video above shows the new Zbrush 2019 zremesher in action and how it can be controlled better for remeshing while keeping creases.