Bivens,
As you may have gathered from my previous posts, I am trying to get a setup that works for me. I run on low to medium grip outdoor clay so hopefully what I have exprienced will be of use to you.
I found the steering very aggressive, some people like that but it was too much for me. What I did was raise the axle height by having 4mm spacers in the bottom with no spacers at the top. This really calmed it dowm, to the point it was too much. I intend to go to 3mm in the bottom and 1mm in the top and see if that is a bit better. I am also running 4mm trail, shortest camber link possible, 3mm on inner mount and 1mm on hub with long vla.
Regarding limiters in rear shocks, Frank answered this on post 197 (its 7mm).
Bump steer - I noticed the same as you. If you put in the #1 ackerman arms, it will reduce the bump toe out massively.
Anyone know why you would want toe out bump steer? In full size cars this is something to be eliminated if possible.
Hope this helps.