I shift mine everyday at 6300-6400. It pulls strong to 6200, then the extra couple 100 RPM over the 6200 set up the next gear to be deeper into the power curve. I have the rev limiter set at exactly 6400. I have hit the revlimiter pretty hard before at the top of 2nd gear and tagged a few plugs with the piston, but nothing ever got hurt. I even looked into the cylinder with a bore scope and there was just a TINY little mark on the top of the piston.
Over 5k RPM's, my stock tach reads about 300 RPM higher than my Autometer. I know my Autometer is more accurate because I can hit recall on it after hitting the limiter and it shows exactly 6400.
As long as you let off as soon as you hit the limiter, you will normally be fine.