Setting Anti-Skate on VPI Fatboy Tonearm

I agree with millercarbon here. Use the Peter Lederman method. Find a record that has a long wide leadout which as you know is at the innermost part of the record near the label. Drop the stylus in between two widely spaced lead out grooves. You want the stylus to slowly make it's way to the outer groove-the groove closer to the label. Don't expect this too take very long-the outer groove is by nature going to catch the stylus within one rotation. 
I believe that degree of overhang and antiskate are two overemphasized adjustments, particularly overhang. Get everything else right-SRA, VTA, VTF, and azimuth and get the loading right for your MC and you will be fine. It is fairly alarming to think about all the folks who sweated over so many other details and did not experiment with proper loading. Too much loading will make a MC sound dull and too little loading will make a MC sound loose and bloated. How can anyone deal with a phono stage that requires disassembly and/or DIP switches/resistors to set loading? 
I had someone reach out to me yesterday about his SME 3009 and perceived distortion with a Hana cartridge. There is just no way to remotely judge what the source might be. 

I don't have that arm, and can't find good enough pictures to figure it out exactly. What I can see the line comes off the back end of the arm and goes over a pulley, probably to a weight. The only way of adjusting something like this will be to change the weight, or the attachment point on the arm. Which looks to be fixed. So its the weight. Do they have different weights?

Thanks Everyone for your responses.

How is the "Lederman Method" different from using a grooveless record?

Other than being able to do it without a grooveless record? Its not.

I use 2 donuts on the outrigger with the others on the top....slide them close to the pivot and I'm good to go...it just adds a bit of compensation, though I can't hear a difference with/without it.  I twist the whole assembly on its attachment to the tonearm so that it's travel is the same with the arm in the leadin or leadout grooves.