Well , it works exceptionally well for me.

If you catch a gust that causes you to balloon a couple of feet above the runway on landing approach and your speed is low and your engine is not spooled you will cartwheel. It does happen. Ask me how I know 😬

If it happens, maybe one of these guys who say it’s not needed will repair your airplane gratis. There is No downside to having some crow in the landing flap position. A little extra drag is helpful on landing and it helps the wing to stall at the root before the tips.

I don’t use it in the mid “takeoff “ position as I don’t want any extra drag or lift killing aspects on takeoff.

They screwed up the wing saddle molding and when the flaps are “ up “ they are really not completely up. So if you match the ailerons to the flaps the ailerons are actually drooped. This accentuates the roll off of the airplane at low airspeed. In reality, crow is just correcting the MFG error. Personally ,I don’t like the looks of aileron reflex with the flaps up ,so I only deploy it with full flaps. I also don’t need it at cruise.