OIC. So the constraint mechanism is tied into using the b-splines definition also and not just a single "analysis" created by you... I can see how it starts to get overly complicated.. I can create the results I need with MoI anywho... Thanks for indulging...

Wish that spiro curves guy wouldve been interested in playing ball with you!! I've also seen you speak about creating more power in this area anyway.. Will look forward to something in the future..

Thanks again,
Burr