I need to replace my rear passenger tire after finding a nail in the outer tread when I took it out of winter storage. I only have 10,000 miles on my 06 C6 so I still have the origanal Goodyear Eagle F1 Run Flats. The tread on them is still good with over 50% of tread life left. My question is, should I replace it with the same run flat or should I change both back tires to a non run flat and put on a different tire like the Hankook Ventus V12 Evo which has a better rating than the Goodyear. All opinion's would be appreciated.