Had the B12 out today here in New York... an unusually warm December day, (about 60 degrees), with a fair amount of snow-melt water on the roads.
I find the rear tire to be a little skittish on the wet patches. Like, it would kick out slightly.. an inch or two... occasionally, but nothing scary or dramatic. Just a little twitch. Seems like the compound is a little bit hard or "plastic-y".
Wear so far (about 3000 miles) is very good; better than Bridgestones or other expensive tires. Strengthens my hard compound theory.
The front "wiggle" I have experienced from the beginning is still there, but not so pronounced. If I lean out over the front of my bike at speed I can see the center-line of the tire moving back and forth slightly, so I'm guessing the tire itself is out of true, (not damage resulting from my heavy-handed mounting method). And yes, the balancing was done professionally.
The tires are TALL. The front sidewall is about 1/2 an inch taller than those on my old Bridgestone BT-020's. I wonder if these are REALLY "-70-" s as they claim... seems more like an "-80-" height.
Still, I'm having fun beating the zhit out of the things, and they wear and hold DECENTLY enough so far. For $179 a pair, they are doing the job.
But when these wear out, I'll probably go back to ($$) Bridgestone's for the Summer.
More later as they wear!