BioMax
+1y
In order to have some sort of instant center, the front mounts should be about 1.5" to 2" closer to each other than the rears. 8" apart from each other on the watts link is plenty. There are a few post on here about proper set up, but I can't remember where they are. I wrote this for Sport Truck a few months ago...
On a properly set up Watts link, both bars will be parallel to the ground a half travel, but the center-link itself will be over center. The center link will be straight up and down only at