There, there... :-) I do use it, just not often, that's all. Poser 4 seems less able to cope with double sided polys than Poser 3 was, for some reason. I suspect many people don't know it exists - when you look at the number of requests on this and other forums which are answered by a link to UVmapper, for instance. Also, the single/double sided question is often academic when it comes to rendering time.