balancing ultimate with swept back wing
 

I am confusing myself on balancing my goldberg ultimate. I blueprints show the balance point being 2.5in back from the leading edge. If that measurement is taken at the very center of the wing with the wing being a swept wing the measurement would not be the same at the sides of the fuse where my balancer pads rest. Am I right in my thinking? It might be 1.5 inches 4inches out from the centerline of the wing with the way the wing swept back. I just need to confirm my thinking.
thanks
Jeff