How are you shifting the cambiocorsa during aggressive driving? Sometimes I keep it around 5,000 before shifting, but other times I take it redline. If the maximum torque/power is at a certain rpm, then would it not be best to keep the rpms in this area?
Once I redlined 2nd and upshift to 3rd, and I somehow manage to get a chirp from the tires. From my experience, 5000 rpm shiftings gives you plenty of torque for the next gear. But then one can only go so fast in HK roads, 4th gear is plenty in HK.
the best for acceleration is at redline, if you want engine longevity, shifting a bit after the torque peak should put you right back in the sweet spot for the next gear; but not the fastest you can go...