NURBS...hmmm...
I think that polys are far worse in that respect - I had a bunch of them swearing to take the most cruel revenge on me, just because I used the Cut Poly tool on them! I mean...hey! Tss...
But then: SubDivide and Conquer! :headbang:
Renderizer
Subdivide and conquer!
Free your mind, and your ass will follow!