I have many customers with stock engines leaving @7700, a 7200 hit won't get you to the next round. They can leave that high because they don't rely on centrifugal assist as a factor for controlling the clutch hit.
That's right. The clutch tamer controls how fast the pedal moves, and the throw out bearing. Like I said before...there is a big difference between slipping a clutch and the controlled application of the clutch. Two totally different things.
They are totally different. The "controlled application of the clutch" that you seem to be talking about depends on rising centrifugal force to apply pressure needed for lockup, which also means that it requires a lower launch rpm to get the slipping required for launch. When "slipping a clutch" with the 'tamer, all the clamp pressure is already available at any rpm, you are just withholding some of that clamp temporarily at the throwout bearing to get the slipping required for launch. That's the key factor that allows you to leave at much higher rpm without overpowering the tire/chassis.