Best Option to Evaluate a Torque Reader?

Hi
We need to evaluate a Torque reader if we are getting a repetitive lectures,
And we are on a discussion here,
Some engineers says:
We need 1 torque driver programmed to .49Nm, 3 Operators and 30 lectures each operator.
Other Engineers says
We need 10 torque drivers programmed to .49Nm, 3 Operators ,(we do not know how many lectures per driver or per Operator)
and other engineers says:
We need 10 torque driver first programmed to .3Nm then programmed to .49Nm and finally programmed to 1.0Nm, 3 Operators (we do not know how many lectures per driver or per Operator)

Which one is the best option so evaluate a torque reader?

appreciate your help

 

My mind is translating this to a Torque measuring device, and a "lecture" is a measurement. If this is incorrect, so will be my comments, methinks...

One Engineer says you need 1 Torque driver...the others say you need to have 10.
If you do not already have 10 drivers, then use the option that costs less.

I would suggest:
1 torque driver
3 Operators
10 items to measure
3 measurements on each item by each operator

If you don't need 10 drivers...why buy them just for the test? Do your engineers want to take the extras home after the study?