[Lee]

I think Ellis or Elvo will be able to give you a technical answer to this but ill try to do my best.

What you are doing is lowering the wishbone pivot point in relation to the chassis. this means that you are raising the roll centre, the rear of the car will roll a bit more in the corner but it should be better over bumps and just feel that bit more planted.

We used to play about with raising wishbones when i raced on road and moving them up by 0.5mm made a massive difference to the handling of the car.