The 3 graph shows the inconsistency of the Power Valves closing RPM made back to back over a time period of 30 seconds.  The zig zags are produced when the valve closes at a RPM where the closing point is not at the optimum RPM.

If you flip the bottom line to time and not rpm it shows how quick the zig zag happens. Real quick.
Then you take it to the track and run it on timers, alot of times it will ET quicker with a little zig zag then with out.
Just a guess, but I think it helps set the bike / tires for a millisecond.
Makes you want to pull your hair out I know that.

Good stuff MotorGeek. thanks for posting