I have finished testing the BFGoodrich g-Force Sport, Firestone Firehawk Wide Oval Indy 500, Kumho Ecsta SPT KU31 and the Yokohama S.drive Ultra High Performance Summer tires.
On our 6.6 mile road ride, the weather was partly cloudy, 72 degrees and the roads were dry. I thought all of the tires were fairly quiet but the Firestone was the quietest of all four. The Yokohama had the best ride quality and the Firestone was the best handling.
The conditions on the test track were just perfect for pushing these summer tires to their limits, it was 80 degrees and dry. It was an absolute blast!! All four performed very well, but the Firestone was a bit better in braking and overall response in cornering.
Overall, I'd place the the Firestone first, the Yokohama second, the BFG third and the Kumho fourth.
Watch for the complete test results online that will include the wet handling results.