I lowered my car approx 1.25" front and 1" rear and ended up with apprx 1.25 deg -ve in the front, and 2.5 ish -ve on the rear. I used the spacers on the rear, but found it difficult to adjust the toe when I reduced it to below 1 deg -ve (you get a lot of toe out when you put +ve camber into the back). I took out some spacers and the toe corrected itself and I'm at approx 1.25 deg -ve on the rear. My toe isn't at zero but still within factory spec (3/32" total toe out in front, and 5/32" total toe in in rear), but I think my tires are wearing quicker. Although, that could also be from the AutoX events I'm now running