Well obviously CA hinges due have the possibilty of failing as the poll is showing. I think the percentages of the poll are a bit skewed for some reason and I would bet that they don't fail at as high a percentage as the poll is showing. Perhaps people with failures are more motivated to answer the poll.

What is even more interesting to me are the written responses that seem to be following a trend. People with failures tend to have multiple failures. People without failures obviously have multiple successes so can we conclude that those with failures are doing something wrong to cause those failures?

Another thing to consider is the comparison to other types of hinges and the notion that pinned hinges have fewer failures. I would guess that CA hinges are used on more than 75% of todays models so to say they have more failures is misleading, more models should have more failures even if the percentage of failures are the same.

Perhaps the most disconcerting thing about CA hinges is the fact that people have multiple failures which leads me to believe that there is less tolerance for improper installation technique. I think you might be able to get away with fudging the size of the hole or glue application or whatever with a pinned hinge yet a CA hinges won't hold up as well when everything isn't done by the directions. Also a pinned hinge when not lined up correctly will bind and be hard to move yet a CA hinge will still move but, just may wear a lot faster. It is also impossible to not have enough gap with a pinned hinge that will cause stress on the hinge where CA hinges need that gap so as not to be stretched when deflected.

To get a scientific study of CA hinges a multiquestion poll would be neccasary administered by someone with a statiscal background. This poll is good for conversation but the results I feel are not indicitive of reality.