You can shift way faster on those bikes. Let it rip! They're a synchronized trans. Just back off the throttle for a brief second as you bang the next gear. You don't even need to use the clutch but I still do myself.
yeah he grinded the gears a little going down gears. When going down the gears pull the clutch in all the way. Not quarter way. you'll just chip the gear teeth otherwise. Good upshifting though. Just need to perfect rev matching. fast for a little bike though 65 mph not bad.