I've been creating some morph sliders in zBrush as I learn, and wanted to make something a bit more detailed.

Previously just using the move and smooth tools and had no issues and created some modest looking sliders.

This time I wanted to try making something detailed so I created several subdivisions and modeled a highpoly object onto the base face. It looks really good and I am pleased how it turned out, but when I try to import it as a slider like I have so many times before I get the error message "The base and target characters are incompatible".

If I lower the resolution all the way down it will import as a slider, but you can't even tell what it is.

I'm guessing that CC compares the poly count in the key or something. Is there a way to import it at all without loosing all the detail?