I finally got the opportunity to fly the 5600 in the IFR system the other day and was overall very pleased with the performance. However the map display on the 5600 did not show the arc simply a direct line from the IAF to the IF. The Garmin did display and fly the the arc. Now that I'm getting this out for questions I don't remember if the NAV or GPS portion was on - I will have to check that part of the approach. More to follow.