When to shift?

I'm just lazy.
$250 at the chassis dyno and I have the info in each gear.
They want you in the seat when you do the runs.
Each gear will have a different tq spread because of the different ratio's of each gear.
Last time at the Dyno I moved my RPM chip to 7400 and let it fly.
Found out I didn't need to go over 6700 in 1st or 2nd.
I wouldn't do this with a stock anything engine.
That was my disclaimer.