Good inputs jp4130. Got any pictures of your wheel set up? I'd love love to find a light 8.5" wide wheel with the right offset for autox and I'm actually considering 17x8.5 to meet this goal. I take it you had to roll fenders a bit?
Also, my experience with Hondas and Subaru's is that while I thought my handling got sharper or better with a lower offset wheel, it was actually the increased tire size that was adding the handling/grip. It took going back down from a low offset wheel to the correct offset to feel the diference and the difference is huge. A 17x8 50 offset felt much sharper, much more precise and much easier to track then a 17x8 40 offset (yes with the same exact tire). Also, when I had my Honda, the bearings started to head south after about 20k miles.