Yea we actually use the real weather in our weeking using www.weather.com and the city of the track we race. The problem I have is that I really have no time to really test a set, the race is in less than 12 hours and I hadnt done more than 10 laps there lol, of course I had raced there before and I know whta to expect, but its always better to share and hear other people opinions to have a better aproach to the practice and race.

Very appreciated your advices and thanks once again .