Something else to consider are flying coupled GPS copter approaches that have a 70 knot speed at the MAP. A 10 knot margin between a coupled VminI of 60 knots and a required max airspeed of 70 knots needs 100% attention to the correlation of power and airspeed. Inadvertantly letting airspeed bleed under VminI may find you in a very strange configuration very, very quickly! Not much fun when you fail to break out. Using the IAS mode throughout the approach will keep the heat off.