Nearly had a mishap today on my Pitts on a topic I have been warned about. Darn, I almost had to learn the hard way. Two out of three of the CA hinges on the rudder sheared off with a clean break like someone took an exacto knife to them. I have never had this happen before any any of my planes. In fact, several guys with 20 and 30 plus years experience said the same thing. They had never had a CA hinge fail. I had read post about this, but felt guys had just installed them incorrectly. These things just cut without me doing anything wild and crazy. Fortunately I was able to get the airplane down without any problem, but this could have been very bad. I am going to replace all the movable surface hinges once I figure out exactly which ones to use. I was warned about this, but didn't listen and took the path of least resistance and nearly lost the airplane. Arrgh! very lucky!