First off, I would like to say thank you for making Recast. It's really awesome.
I had a question. I am working with an algorithm that requires the polys to be planes, but when I increase the Verts Per Poly above 3, Recast sometimes merges regions that are not in the same plane. For instance these two triangles are not in the same plane:

Is there a way to disallow merging of triangle regions that are not coplanar?