Aha! So using a 4 server config that i based my config on, i was confused but it looks like it should be like this afr1 = a1 + b2 afr2 = b1 + c2 afr3 = c1 + a2 unify = afr1 + afr2 + afr3 SUCCESS! I just tried it and no errors and 2 copies of my files. very cool