One can be too Curious it would appear....unless you can control it from the cockpit....and one is not writing a Thesis on Rotorcraft Power Dynamics....why in the Hell would anyone be asking questions such as those posed?
I would have to respond by asking exactly what does it matter....as all that is accounted for in the Aircraft Performance Charts provided in the RFM....and suggest the quiz move on to that topic.
Yes...the Tandem Rotor does work better with an application of side slip just prior to ETL when very power limited. The Aft Rotor works better in clean air which can be achieved by an application of pedal....swing the advancing side of the Aft Rotor into the existing Relative Wind.