Loss of translational lift? If you fly backwards you will still get the benefits of translational lift, if you fly the Chinook you can transition sideways and get even more of it - at least until the increased drag from the airframe becomes a factor.
What would happen to the Tq if you were sitting x-wind and using the good pedal (ie. the one that yaws the helicopter in the same direction as the rotor turns) to maintain heading, would you see a net gain in power available?
Time to go for a rest......