also…if you get partial transfer it may be due to a too small scan distance in the project all slider. increase the value and try again.
Note: You’ll notice that at the end of the remapping process, the mesh may be partially masked. The masked areas (dark) indicating areas that have been fully transferred from you sculpt. For example, if your original sculpt was a detailed torso mesh and you have exported a low res mesh to another application, then added head,arms,and legs to the mesh and re-imported it into ZBrush, the result will be a masked torso with remapped details and unmasked head/arms/legs indicating new additions to the base torso mesh.