howdy
hm, quite difficult to explain with my
poor english:
the whole story about that spacer, and changing he steeringknuckle from left to right is all about the roll center.
i mean it changes the hight of the axle in relation to the under suspension arm.
if you got the axle high, to roll center will move closer to the center of gravity. it will also make the car "hanging" more in the suspension, that means some kind of smoother, but there will be more dynamic weight difference between the front wheels-more understeer entering the turn, but less exiting it.
the axle lower makes the car more twitchy, but it has due to bigger lever between c.g and roll center more turn in, because dynamic weight difference between the front wheehll is less. ( more bj4 style entering a turn)
i hope you understand what i want to say.
Greetings from very very cold switzerland
Maurice