Let me elaborate on the road smart 2/3's
I've ran a few sets I'd Rs2's over the years on various bikes. The milage I've got out of them has been insane. Currently I have Rs2's on my Nc700x, the rear has 7k miles and front has 5k. Both should be good for another 2k at least.
I ran Rs3's on my st1300, got a solid 5k out of the rear before it was shagged. This was 5k miles fully loaded with gear for a month long camping trip at a very good clip every day. Previously, I got 4k out of a set of Rs2's on the st1300, funny enough the front wore out first.
My usual tire life:
Pr4 - 2700
Angel GT - 3000
T30 (non Evo) 2700
M7 RR - 2K miles
Q3 - 1300-1500
Supercorsa - 1k
Pilot power Evo race thing - 1000
Pilot power - 2500
So, to find a tire that lasts over 3k is pretty amazing...
To find a tire that grips and handles my abuse, sign me up and call me a fanboi
Roadsmart 3's have a $100 rebate right now.