I just spooned on a pair about 800 miles ago.
So far they seem pretty good.
The turn-in is actually slower than most Michelins I have owned, but a bit more effort and we are rocking along.
Swampy and I went for a ride today and did about as much dirt as one can do in North NJ.
I was quite impressed with the A3s. They had more than acceptable grip on dirt, gravel and even did ok on some loose rock on a hill. Is it a knobby? HECK no! However, I was darn impressed for an 80/20.