It worked for me.
I have seen this about a year ago, it is interisting reading.
I think primarily aimed at racing motors. I did a modified version of this techniec.
I do strongly agree about the oil changes. I changed early and frequently. miles 250, 600 and 1,200, then normal.
As for RPM, Varying the throttle is the most important, as for high limit, I did peak it to 6,500 @ 200 miles, but then came back down. I did not baby it as much as Suzuki recommends, I did not "beat it" either.
It does make for good discusion.
I heard the main reason Suzuki wants the 4,000 RPM Limit is, "Liability Issues". They figure at 500-600 miles you should be comfortable enough for higher speed if your new to bikes/scooters.