I had my dealer install Shinko 705's straight off the bat. I'd enjoyed them on the Stroms (although had some trouble with the bias versions, once they moved to radials most problems were solved).
The first day on the dirt on the S10 - Michaux State Forest, PA - I was hammering them pretty hard, amazed at the acceleration you can get on loose stuff with TCS2 in play. I'd ridden these roads not that long ago on the Vee. It was much harder work to go fast, pretty much a breeze on the S10. Swallowed up the lumps, could brake HARD on varied surfaces and it would just STOP, no drama. Accelerating off a turn, where the Vee would sit there spinning, the S10 would just put a big hand in the middle of your back and PUSH.
I suspect this is what the Shinkos didn't like - spinning is less stressful on the tire than getting traction, no? The Vee didn't tear the tire up like this, so to me the traction control is the biggest different. Of course there's weight/power difference too. But I could be completely wrong.
The dirt riding ended for me after a flat in the rear. I couldn't see any foreign bodies that might have punctured the tire, just a bunch of tears, cuts and cracks, and one of em was leaking. Thought it was a good time to get it fixed and head home, before any of the others started leaking - actually one was, just slightly.
Anyway, no more Shinkos for me for a while. I think they would be ok if used gently - as if that's going to happen! I have a K60 on the Vee, it's coming off and going on the S10, and the replacement Shinko (warranty) is going on the Vee.
http://youtu.be/ciaVo5eh5r4