I will most likely try the michelin Super sports. To see how they compare. they are a bit more money though. they don't have exact sizing but you could do 295 315. they also do have a 305 listed i just dont think it is out yet.
I had NT05's on my Z06 and they work well too but they are sized a bit odd. 275 then 315.
2013 ZL1 10%lower,rotfab,90mmtb,SP headers
(president of the tangent oregon trophy husband association, founding and only member)
2013 Megacab 8" lift 38"mt's