Hi Michael,
Using extra longitudinal profiles works perfectly for now, A little more work than the Csec's but a simpler than the slicing and dicing. Thanks for the pointers... (C joke)
V2 with Csec, and hopefully the dreamed about layers ..(ref: other user requests), will make me pack away most other nurbs toys, and go MoI culting on the highways.
And a great thanks for making MoI nurbs my 3d pencil with an amazingly simple approach to CADding. My hat off to you sir.
Jess