I have used both the Pirelli P Zero Race SL tubeless and the P Zero Race tubeless.
I like them both for different applications.
The Race SL is 20-30 grams lighter, so it is good for race or specific event uses, and the Race model has a slightly thicker tread and puncture protection.
Both tires mount easy on my Campy Bora WTO rims and the bead seats every time with just a normal pump, I don't even have to remove the valve core.
They last a normal amount of miles for this type of high end tire and don't seem to pick up tread cuts too easily.
Pirelli are very good tires.
I got the P Zeros mounted on Zipp 303s wheels. It didn't take long for me to become a convert to hookless tubeless. The tires are supple and compliant. Inflated at 75 psi, the ride is far smoother with less rolling resistance.
