You never want "negative caster" - the car will drive you. You need positive caster, just like on a bicycle. The diagram you posted is a bit misleading. What's missing is the words "TOO MUCH" as in "too much positive will make it hard to steer."

i was just confused about what sir dan has said on another thread. he said that to attain an easy steering i need to set it to positive caster. and the computer(google) said to attain a good returnability and self centering, i need to set it to negative caster... now if i wanted an easy steering AND a good returnability/self centering, at what angle should i set the caster??? i thought i was on the right track until i read sir Dan's comment....

ooops, someone must have interpreted it wrong...(based on the pic)

i knew it!! i've been thinkin all night if i still need to adjust the toe and camber..thanks for the reminder.

When you change the caster, you also change the camber and toe - you need to set all three together or you will wear out your tires.

Ok , i adjust the caster towards the negative bias. And i use this stick with markng to make both sides even.  The handling improved remarkably.. Thanks!

!st check the hubs and steering rack for binding If thats all OK check castor angle at front

Sir Paul,what determines the steering wheel returnability? that's the only issue i have now on my mini, if i do hard turns or u-turns, i had to assist the steering wheel to go back to original position. i know it sux. pls help