Out of interest, all twin engine mil training at DHFS has been on the Griffin which has a similar autopilot such that instrument approaches are flown using cyclic to control RoD and collective essentially controls speed.
Now the basic and advanced training for all other approaches is cyclic for speed and collective for RoD.
So all our recently trained pilots have managed to cope with both concepts and are specifically checked on their IRTs to ensure the 'counter-intuitive' method is understood and correctly managed.
Guess what? It all comes down to training!