Let me say this I have never had a Radio South ca hinge failure in 10 years..........I just completed a Yak with a 40cc gas and was out of the blue radio south hinges and used the ones that came with the kit. The forth flight was it''s last.... as the rudder ripped off (control rod held)and beat the elevator off......sheeese........... RS blues hinges or Robarts, and if I''m out assembly stops.

Live and learn....and learn again.