I don't doubt that those numbers you posted are accurate, although I am interested to see the graphs and hear your explanation. What I do doubt though is that any non professional can hit those exact RPM's on a consistent basis and keep full focus on the road.
I go partly by engine sound while shifting with a quick glance at my tach. I'm not going to sit and watch my tach to make sure I hit the exact perfect RPM before shifting, while the scenery is whizzing by. I usually get it between 10.5 and 11K, which is close enough for government work as they say.
I have a big ass bright programmable shift light on mine