take the slack out of yer throttle cables and go 16/44 or 15/42 as been said, then decide if you want a QA throttle.
cheers
CK
Take a google at G2 THROTTLE CAMS, i know they did one for the SXV550 and you were able to get different stages of twist.
I didn't realise you knew were the throttle was Bear :dunno, you are trying to twist the right hand grip aren't you :devious, I'll have to have a look next time I overtake you :doug