Meanwhile, you might want to try a set of Bridgestone BT56 SS in the stock sizes. The 190 is actually about 1/4-inch narrower shoulder to shoulder than the stock BT56 J, and the front may actually be 1/16-inch wider, or my no-calipers measurement method may have been off.
My bike turned in a little easier and felt extremely stable after I put a set on. The grip was good, but haven't put them to much of a test in the first 170 miles. $270 for the set plus tax, mounting, etc. at the dealer.