My Solara was lowered with Eibach/TRD and Tokico, the rear was 1.6 and the front I believe was 1.2, I did get a camber kit but my tires wore out evenly and lasted for a long time, no excessive or uneven wear whatsoever.
My Camry is lowered with Eibach/TRD and Tokico and has a 1.25 drop all around, no camber kit necessary, normal alignments to Toyota specs and tire wear is even and long lasting. Jon.
p.s. I bought a 5 year alignment package from Merchants/Tire Kingdom/NTB for $170 unlimited plus a lifetime rotation/balancing/road hazard package for $20 for each tire. It didn't hurt that I had a 50% off alignment/alignment package coupon so I only paid $85
