I prefer the 1900C. As Clue 32 put it. "Lands like a champ, very smooth and stable down low." The C is slimmer and doesn't fly like it has a huge knot on its' forehead. Better in a crosswind and "feels" like it has more directional stability. The good thing about the D is if you are less than 6 feet tall you don't walk out with a knot on your forehead from banging into the ceiling. Unless, of course your the crew and you realize the C and D cockpits still are very small and you bang your head regardless. Clue 32 what area of the country did you fly the C?