Hi folks, My new-to-me FF has Pirelli P-Zero summer tires currently fitted. The date code on the front reads mid-2018. The rears are mid-2017. Wear is not bad, approx 50% worn on the rear, only 40% worn on the front (noted in my PPI). I really want to switch to Michelin PS 4’s but I’m hesitant because there seems to be a lot of life left in the Pirelli’s, and I don’t typically replace good car parts. Would you switch out “good” tires? Any suggestions? If I hear that the performance difference between the two (from owners who have run both brands) is overwhelming, that would mean a lot. Appreciate the advice, thanks in advance. Also, I haven’t driven the car much since I took delivery recently and the weather at home is poor / not conducive to grip for summer tires.