""""""""I think it may be G1 but even with your improved one there still seems to be a bit of a wiggly dip right near the boundary edges:"""""""""

Yeah, that seams to be from that "flip up" in the upper corners of the untrimmed surface created, and I wasnt quite sure which of the 8 something parameters were to control that! That surface was using a 30x30 UV setting, that I think allowed it to flex there. I didnt save the 9x9 to re-check it in MoI.

I guess thats why we wait so long for n-sided patch. It will be it's own complex area adding that dreaded extra UI.

Please dont degrade the display to fool me. I get that in a couple other apps already :o