Well, it looks like the PoserPython calls to change the UV values aren't where the speed issue lies - looks like it's simply the speed of Python iterating through tens of thousands of vertices :(

After optimising the speed a little, I was getting over 12 seconds for a Genesis UV swap - optimising the UV methods didn't seem to speed it up any more than that so I commented out the UV setting methods, and that made less than 2 seconds improvement on my machine - so still around 11 seconds without actually making the changes. As a result, I can't see any way to get the time down to 10 seconds WITH making the changes using Python. Sure, it can be done - but at that speed and with the seam limitations I don't think it's worth putting more effort into at this time. It'd be far better coded into Poser as native code than as a slow, interpreted script.

Cheers :(

Cliff