Thanks Burr for putting that together

I now understand exactly what you mean.

It's a very good tip to create a much larger array of points and then just use trim. I should be able to work with that reasonably effectively until the addition of add point to surface gets included in MoI sometime in the future.

I know this thread is sounding a lot like sub'd modelling for nurbs but sometimes that is the best way to create some of the more tricky organic shapes that occur in some subjects rather than trying to patch the shape together with multiple individual surfaces and maintain surface continuity etc