Haven't been around much lately, but for those still reading I want to offer a simple experiment. Get a piece of thin solid wire, maybe 6-12" long. About 1" up, bend the wire by, I dunno, 20-40 degrees. Now, pretend the long straight portion is the tone arm, and the short part is the cantilever. The bend represents the offset and resulting angle. Pull on the ends of the wire. The angle of the bend will open up. Or push, and it will close down. This is exactly how the combination of cartridge offset combined with friction drives the cantilever off center. It's a fundamental flaw of pivoted tone arms where offset is used to get the very low tracking angle errors we want. IMHO, tracking angle error is important, but the dynamic moments applied to the cantilever while playing a record are highly undesirable. So far as alignment, a low friction template is desirable, also to reduce the chance of stylus damage, but I don't think it will ever be low enough that the problem can be dismissed. BTW, I never understood (maybe still don't) just what anti-skate was really doing, but as the friction opens the angle and deflects the cantilever, the correct amount of anti-skate will bring the deflection back to zero. Or somewhere close.