The falkens have more grip, however if you are lazy like me, you will want the kumhos. You don't need to spray the kumhos between runs to keep them from overheating. I have made 7 runs in less than 10 minutes in the kumhos with no loss in grip. You can't do that with the falkens. I will probably buy another set when these run out, but I have no intentions of seriously racing the miata.
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You need to grab ahold of that line between speed and chaos, and you need to wrestle it to the ground like a demon cobra.-Talladega Nights