OK, I can take an uneducated guess like some others.[8D]

How about the limbs are ground on a slight bias so the right (cable guard) side of the limbs is just a bit stiffer than the left side of the limbs. If so it would appear the the top cam (which should be the one most people look at) seems to be leaning to the left a bit at the top at brace height. As the limbs flex, the right side flexes less, and the limb remains straighter than it would if the cable guard side loaded the limb harder on the right side, keeping the limb and cam straighter at full draw.