steveshanks: Its easier to do with palm forward, but i can get the back of the hands to touch with them facing sidways but not totally flat (maybe 20 degrees out), yes i can turn them without turning the wrist......Steve

That fits with my own experience: A twist of about 20 degrees is sufficient, but I cant do it (in real live) without at least some movements in the directions called twist and front-back in Poser. I also find it easier to rig figures to do that kind of motion, than to try to get above 20 degrees just with up-down.