I posted above. To repeat. My 08 ran like a furnace the first season. Always on the 4th bar at speed, 5th bar and even a few times 6th bar sitting at lights on humid or hot days. Fan ran all the time it seemed.
I left it alone until the winter of 2009, when I put on the second fan (wired to the first, as a slave), replaced the coolant with Engine Ice, and installed a Brock's Performance CT-Dual exhaust system that had been ceramic coated.
Immediately, the bike averaged 1 bar lower on average, and I could see a marked difference when the fans came on, they only ran for maybe 30 seconds compared to the previous season when they ran for a long time.
Shortly after, I put a carbon fiber ZX10 fender (06) on, and a COX radiator guard, and now at any speed over 20 mph the temperature comes down and stays down, around the mid-point of the gauge.
And, as she gets miles on her, she seems to be running a little cooler overall too, so she must be loosening up a little.
Living the Gypsy Life