Hi Michael - The result is strange, in speed render/editing mode there is no creasing, but in the full render that Modo uses then the creasing shows ...

It's all very strange to me - This is why I said I have found with some models it's better to export as a coarse mesh and then edit it within the rendering package if it supports mesh editing of course, which in Blenders case is true. The final screenshot is from Keyshot, which shows no problems at all - Horses for courses by the looks of things

Martin Spencer-Ford