Hi tracker890,
you have to follow spidermate instructions to model a
boundary surface with 3 curves.
I have just posted a sample part (Wildfire 4)
I hope this will help you.
Bye<a target="_blank" href="uploads/fabfra1967/2012-08-09_060226_3s.zip" target="_blank">2012-
08-09_060226_3s.zip</a>
Edited by: fabfra1967