Positive or Negative Roll Radius?

We are altering our suspension/brakes and seriously affecting the geometry. Lowering the car, 944 hubs, wide wheels, high offsets, etc. These things are making drastic changes in the original design concept and thus will have a positive/negative result on the overall geomtry of the altered suspension.

Take note that we all modify our cars differently, some with VW brakes & some with Porsche brakes, some use ET23 wheels & some with ET52, some with spacers & some without. My point is when you alter the design you should expect the geomtry to be altered as well.