Hello, I've been trying to model an alnico V slug (.187" dia. by .750" long) for a guitar pickup and keep getting an unlikely field pattern. The missing component could be boundary conditions but I'm at a loss as to how to define them. Any hints would be helpful. Thanks, Steve -- Steve Ryder Stringed Instruments 93 Washington Ave. Portland, ME USA 04101 207 761-4653 http://sjryder.com