Ok, on rudder gust locks. I bought one of the high dollar units from anti splat. installed it correctly. had my plane parked at HEN (henderson NV). big wind storm, 50-60 MPH gusts, and guess what? It didn't work. the bottom of the gust lock had disengaged from the rudder pedals, with evidence that aileron and elevator deflection had flexed the gust lock enough for it to come loose. my rudder was slammed into the elevators leaving dents in the rudder and a tweeked elevator. fortunately, i didn't have the plane painted yet, and it was repairable.
Bottom line. Don't trust a single gust lock to hold everything in place. what the demonstration video shows you is a heavy consistent wind pointed only at the rudder, not real wind gusts affecting all the flight controls simultaneously.
The only sure fix is external locks on all the controls and possibly the internal lock on the rudder. For right now, the plane is safely tucked away in my hangar at MKC. no more tie-down parking until I come up with a better system.