I love them!!!
My 2012 GSA came with A2 so I was surprised when arrived @ Dennis Kirk and found they were now A3!!! When I picked them up was surprised by the tire tread. Installed to the first rear and ran 3k miles and loved it so much I replaced the front and the rear with A3 prior to the MOA. Ran 4500 miles to the MOA and back on mostly paved roads, but did some single track stuff in Colorado and some off road in North Dakota. Made the trip fully loaded with gear and had some super hot riding days at times over 80 mph.
Not a ton of off road, no mud, but with over 7k on this set and still lots of tread left I love them. No doubt my next tires will be A3 again.