After the OEM Good years I put the F stones RFT tires on my C6. Very happy with these tires. I am getting another set of them this week. I don't want to downgrade into the non RFT for safety reasons ( punctures ) at speed. Also the RFT has more crisp steering response than the non RFT tire. I live in the mountains in Northern California , daily drive my car to work and do some serious carving every day , Very spirited driving style. These tires have worn good for my use. The RFT tires will stay intact if you have a high speed blow out also.