You guys should ditch Amazon, and add RockyMountain ATV to your tire vendor list... as well as a couple of the others noted.
Stiff Bridgestone sidewalls.... might have you feeling if you ran over a dime.......
On my second set of Angel GT's, only on the Kawi Versys V1k, only half worn yet, seem good to me... just about to mount a new set for my western adventure (~6000 miles). As well, my buddy Dean who now owns my '14 FJR, is sporting a brand new Angel GT rear. We will be able to tell you more in July when we return... we will be testing them in many conditions. I believe the Angel ST's may have a slightly softer compound, more for sportier type bikes, may not last as long.
I believe you can use up to a 15" wheel if making your own like the No-Scuff.
After I mount tires, I give them a wash with mild soap and water, then rinse, then go ride.