Wow! I talked to Kumho yesterday, several times. The Ecsta SPT has been replaced by the Ecsta LE Sport. I returned from my Tire shop a few minutes ago. This morning Kumho had my tire guy replace my SPT's with an identical set of LE Sports. No charge. Marked as "Tires furnished for Testing". How cool is that?
I'll keep you posted as to how they are doing. Ask your tire guy what he thinks about the LE Sport. Kumho's Socal distribution center is not far from you. They are located in Redlands.