I miss the 120. I managed to be lucky enough to fly it for a few years from both seats, and eventually teach on the plane. The prop system was just over engineered. They designed a propeller that would fail to flat pitch, instead of feather, and then had to come up with all these band aids to prevent it from over speeding. Mechanical pumps, electric pumps, mechanical and electric valves, flight idle lock solenoids, over speed governors, pneumatic fuel topping governors...and the list goes on, had they only built it to fail to feather all that could have been avoided.