True. My 2012 Rubicon never took a chip. My 2015 Rubicon got blasted.
I think speed plays into it, also. I'm doing 80+ on my daily commute. My Bronco windshield is cracked and has two chips. Not replacing it any time soon.
Yes. 1". I haven't taken pics, as I have not adjusted camber after the lift. The sidewall of my 285 tires poke out, but the tread is right to the edge of my non-Sas fenders. A 315 would expose about 15mm of tread, assuming the Sas fenders are an inch wider, and assuming the GY's tread is...
Almost always.
The Titan spacers are $100 less than the other popular brands I've seen here. They are hub centric and fit perfectly. Saved $100 by going with SVC perch, also.