With track days coming up in June I got a hold of some AP temp paint so I can see what is really going on with my rotors and ducts.
and for more track data analysis, I split a Racelogic Performance Box with a couple friends. The performance box uses GPS signal and accelerometer to calculate lap times including split times and predictive lap times as well as cornering and lateral G's. It should be a good tool to help improve my driving. All the data can be uploaded with the included software and analyzed.