fireberd350- Nah, you're not committing any heresies by going right to the 3M RC, you just know what you're doing. Once you're familiar with your paint and products, starting with something that's too mild is just a waste of time.
If you *really* knocked yourself out with the washing, you could probably avoid 99% of your marring though. No way can I wash *anything* with just two mitts and the two-bucket method without inducing some kind of marring. And well, I won't comment on the QEW except to say that it's pretty much the conceptual antithesis of my approach to washing
GDA4- Yeah, *generally speaking*, harder paints are more prone to chipping. The stuff Mazda put on the first batch of 3rd generation RX-7s was *HARD*, but it sure did chip easily. The S-H paint on Audis is sorta in the same boat.
Bill D.- Yeah, the windshields just have to be replaced every so often if you drive in certain conditions. But then I seem to replace them on any vehicle I keep long enough, and I never use the wipers on dirty glass (yeah, I'll pull over to clean the windshield before I turn the wipers on if I feel I oughta

).
Oh, rant regarding Audi glass: They had to replace the driver's door glass on the S8 after the "deer incident". Every new window they send has a visible "smear" in the UV coating from how it's packaged (presumably, contact with some packing material that stains it). Stoddard has ordered multiple replacements, called Germany, done everything they can, but they can't get me a perfect piece of door glass :angry One more reason I'm gonna let that car go when the new S8s come out.