Where wisdom and maturity fail, a strict horsepower limit keeps me from doing anything too crazy. Joking, but yeah.
I honestly have zero reason to ride any faster than we were on this trip, which got pretty hot at times. The 400 handled that pace just fine. More importantly, it was super fun at that pace...more fun than I ever had pushing the VFR1200.
I'm sure it can even be ridden a bit harder when I get more used to it.