Flap Droop Horton STOL kit

[Rmp]

The Robertson stol kit has their flap aileron interconnect, as the flap angle increases the ailerons increase their deflection. This was patented by Robertson.
I find that it dose make the controls heavier. But the kit certainly gets the plane of the ground quick and reduces approach speeds. I have two 337 one with kit and one without (long story) . Jury still out on which I prefer.
I also have the Robertson manual.