the caster isnt ajustable on an s1 as far as i know. nors the camber is it? unless you get ajustable arms.
those tie bars only ajust the tension dont they?
my series 2 has 1.5 deg camber on the front -.5 toe and 18 deg caster.
handles pretty good like that.
get it to a decent 4 wheel machine and get a caster sweep done.