I've had a Warrior cough up on me once or twice. Once I was coming into Arcadia, at about 300ft, powered to idle and cough-cough it went. The engine cut out on landing and I had to drag the thing of the runway.
Another Warrior's engine would 'miss' occasionally and boy when it did that my heart missed a beat too.
Next time I go to Florida for some hour building I'll be spending a whole lot more per hour - for sure.