Look, just to make more profitable at the expense of others is totally wrong. That's unfair even to your business. I have agued with someone about such, asking me if it's possible.
Note, this is only just for tutoring only.
Yes we called that calibration. Some scale technicial can do that for you with N3k.
HERE IS THE SECRET:
Reading in 5 units is more faster than 2 units. The speed is not still the same.