as an example, the post #6 picture has a flat to the earth upper link and a lower link with about 2" higher on the frame side and Anti-squat of ~129%
if we raise the upper link frame side to be 1" higher than the upper link axle side and leave the lower link the same, anti-squat goes to ~77%
if we were to leave the upper link flat to the earth and reduce the frame side lower link mount 1", so that it is now 1" higher than axle side, anti-squat goes to ~65%
if they are both near parrallel to the ground, A/S goes to near zero.
hence why upper link brackets very commonly have adjustments on the frame side
up is difficult, down is dangerous
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