[fizzwheel]

5 - 6K is good, you'll get good drive from there or useful engine braking whe your slowing down.

8 - 9 is to high IMHO, your nearly out of the top of the SV's power band by then. That would be more suitable for an IL4 rather than a twin. I dont tend to go over 9 much on the SV its just not worth it, its better to change up lower down and use the torque to push you along. Although like Razor says it is revy for a twin.

Ride how you feel comfortable riding, would be my advice, I reckon you'd be better off concentrating on your road position and corner entry speed that kind of thing than worrying about what revs your bike is running at.

I'm not an IAM observer though so dont take what I say as gospel.