this does not crash on me - but again, I'm on SP3.0 EV so that isn't fair to evaluate your situation. I assume what you are saying is that as soon as you apply an equal curvature to both sides, that it crashes?
Yes, that is correct Mark. An equal curvature in applied to both ends of the spline and this resulted in the computer crashing. I cannot see anything in the knowledge base on this. Will report this through my VAR. Thanks for checking. i'm using 2010 SP 2
Any suggestions/tips on the best approach to surfacing this model are also welcome.