I installed a ceramic speed BB30 bearing on my Ventum today. I have rotor cranks.

All went well. When I torque the cranks to the proper guidelines, the crank has notable friction when I spin it without a chain.

If I back off the torque, it spins like a champ.

This is the first time I have done this type of wrenching. Should there be a significant difference in the friction of the spinning crank with the different torque measurements?

There is no play in the crank on either torque setting, just a very significant difference in the perceived friction