Unless you really snap the throttle in the powerband in 2nd while leaned over on wet pavement (go play with it in a parking lot or neighborhood, it's fun) the rear end will not spin up. Maybe the 300 is just that much more gutsy than the 250, idk, but ijs.
And Danny, I know you have good intentions, but have you ever ridden a supersport?
it's not like they just suddenly kill you, you're in control the whole time.