I use goz between modo and zbrush while I find one problem:
If you hide some part of mesh in zbrush and goz it to modo, that hidden part will not go with the mesh. Then if you want to goz back to zbrush, zbrush will say the topology has been changed, you have to make a projection. But if you have some layers on original mesh, all of these will be lost when projection.
Is there any way to keep or restore those layers?