...I know, here we go again. the smoke and squeal has gone out of my Cooper Cobras. they don't even leave a black mark anymore. all I get is a hissing sound. tires aren't slick or old. the pep Boyz ... Futura gls 275x60x15s I had before the cobras were the smokiest tires I have ever seen. any suggestions on a tire that would fit my needs? pic is me leaving work the day I retired...