From the bit I've played with the program on my own clothing I seem to see several items that may affect clothing makers who want to use this... 1. The closer the clothing item follows the GROUP outlines of the target character the better. In other words the edge of the groups in the clothing should parallel the edge of the groups on the character, as close as possible. The "shape" of the mesh "inside" the group doesn't seem to matter except as outlined below. 2. A higher mesh "density" seems to translate into a "smoother" looking morph. Low density models seem to ripple badly when shrunk or expanded. 3. Triangulating the clothing object seems to help lower density items make a "smoother" morph, but not as much as a higher mesh count. The above observations are based on my own tests and observations. I am not affiliated with Codetwister in any way. In all this is an amazing program. I expect that, as it gets into wider use it will only improve. Codetwister has added a significant tool to the Poser community. mike