TRIGGER

I know it's not the most popular magazine but just a couple of questions:

1) They recommend Pirelli P-Zero C tyres (as opposed to normal P-Zeros) for dry trackdays and general road use. Are these any good and what kind of cost are they (they advise against them for wet tracks though !)

2) Tyre pressures - they advise no more than additional 10 percent over standard road pressures - this is about what I do, but after a few laps the heat builds the pressure way higher - should you compensate for this ?

p.s I hope 'P1 PVP' is a press car and not one of our lot !