Its time for new meats. Its been three years and the cooper stt's are wearing down. I am ready to go up in size. Modest little 315's. Preferably before I run the Rubithon in July. I have been hunting for tires for the last week and have been told that my first choice GY mtr kevlars are on National back order. My second choice the km2 is apparently back ordered also. Cooper stts are hard to find. Is there a shortage of tires or are the tire salesmen just too lazy to find these things? Or is this common when tires reach sizes of 35" and beyond?