Mat, have you actually had the toe-in checked? If you are running radial tires, 0 deg. works best for me. The original spec is for 1/8" toe-in, but that's for the original bias-ply tires which have a higher rolling resistance than radials do.
A visual inspection of toe-in for a BJ8 can be misleading. When looked at head-on, the left and right front tires do not appear to be set at the same toe-in when they actually are.
Are you seeing abnormal wear on the front tires?