I've been chasing the same issue for two weeks -- and just now found this thread.
I've got a BJ Beetle with new CB 2.5" narrowed beam and drop spindles. The RHS is +/-0 degrees with the stock eccentric bushing set to neutral and the best I can get on the LHS is +2 degrees with the eccentric fully cranked. I can get to +1 degrees on the LHS with an aftermarket eccentric, but want -1.5 degrees. The springs pocket grub screw locations are correct (sides to center). Looks like I need to double-check the beam...
