Is anyone else having problems with the Flyboys Rans S6S autopilot? Most times, when I engage the autopilot, as soon as I press the altitude hold button, the plane goes into a steep dive and in seconds exceeds the never-exceed speed and breaks up. Sometimes, if I fight the autopilot with lots of backpressure on the stick, and try to manually hold it at the current altitude, over a period of several minutes the autopilot slowly calms down and starts holding at the original altitude. Other times it never calms down so I just have to not use it.
There are other related weird features such as, once I press the altitude-hold button, it is impossible to turn it off (I can disengage the whole autopilot but then I lose the navigation-hold capability, too). Or, when I disengage the autopilot, the aircraft goes into an abrupt massive climb and stalls within a few seconds.
Is anyone else having these problems? Does anyone know of a solution?