Updating Crr for different tyre

[Bugsbunny]

Hi John

I'm using a tire which according to BicycleRollingResistance.com is the world's fastest tire.

I'm hoping to fine tune the profile with the known tested Crr - http://www.bicyclerollingresistance.com ... speed-2016 - so that all future PP recordings reflect the new Crr.

How do I do this in ISAAC?
Do I need to redo a calibration ride after I update the value? Or does all else within the profile stay the same (except the new Crr value)?

Many thanks

Bryan