I hope this pictre posted OK, it is the first time I've posted a pic.
I didn't realize how close I was to wiping out until I looked at my tire. Traffic stopped fast as I quickly glanced over my right shoulder to change lanes. I maintained enough composure to sqeeze down on the front brake to not just immediately lock it up, but after about a second I felt the front wheel bouncing, so I relaxed some pressure on the front. Apparenly I relaxed just enough to allow enough wheel movement to not slide the front wheel sideways. But, the pavement grooves may have helped, too. When I stopped, my front wheel smoke caught up with me!
This is a Metzeler ME-880. I felt that I should have had more stopping power from the front tire. I already have a Shinko 230 on the rear, that did not skid despite my effort to lock it up, so I will adjust the linkage. The ME-880 is too hard for me, and in my opinion, and at least for my type of riding, not as safe as a grippier tire.