JoeRockhead:

Regarding Cup 2 tires; has anyone noticed that they can be slippery on the street in the dry? I've noticed that my car will slide out a little bit on aggressive turns at lower speeds, like during a hard left turn at a traffic list for example? At higher speeds with less aggressive wheel input they are great.

 

They can, especially second gear turns sometimes the back end steps out unexpectedly. What I've noticed is the rise of pressure during spirited road driving, mine usually go up to 2.3 front and 2.6 at the rear, when driven very hard I've also seen 2.4 and 2.7 respectively, then they get greasy. This is when starting with the factory recommended cold pressure.

When it's raining and water is beginning to stand I only drive 80km/h on the highway. I once drove 9 hours in pouring rain to the Redbull Ring on Tropheo Rs on my 997 GT3 RS Mk I, an experience I will never forget.