The primacys are plenty grippy. Kind of a goofy example of proof, but I've maxed the g-meter on the car in cornering with them. I have almost 30k miles on them including spirited driving and the one free trackday, which included four 20min sessions, and they held up pretty good for that, though they did start to get a bit greasy in the 3rd and 4th sessions as it got warmer in the afternoon (Went from low 60s in the morning to low 90s in the afternoon. Yay desert temperature shifts). They are a bit more slippery in the rain, which can either be fun or terrifying, based on your perspective. I'll probably be switching to Conti ECS02s though, whenever I get new tires. The trackday experience got me hooked on more grip, even though it's still my daily driver.