We may not see any more produced. Im guessing they are exhausting their supplies of Palominos and Thoroughbred "A"s for those speed ratings, and the Tbred "B"s will be higher ratings only. With the supply problems they are having with the "B"s, its doubtful that they will underclock them and sell them as a lower speed rating, because they are selling them as fast as they are coming out of the fabs.