I think that your understanding that link wrong..(maybe)
They are talking about the amount of toe that you are going to get once you add or remove shims .... Basically for the deg of anti squat it's per portioned via the mm size. But the XMW has a slightly different height front XA block... It's about .25mm shorter than the standard XA block.... So stock on the XMW should be around 1.75°~2° anti squat with the 2mm shm and subtract 1° per mm shim you take out.. And also as that link shows that your toe in will be less by about .5° Per mm as well
.... Well that was at least the way it was described to me before...
If the XM/XR/XMW has that amount of anti squat built into it that's just crazy compared to other buggies
