i just recently stripped down and gave away my 8 yrs old Ultra Sport 40 that had Many, Many x10 gallon of fuel through it and never so much as a single hinge breaking, it had a Jett 90LX for power so I'm quiet sure they were stressed to the point they would of failed if (and this is the important part) they had been improperly installed.

breakage of the hinge at the centerline (flex point) is from over gluing on CA hinges. as mentioned above they require technique to install correctly and there are people who just can't stop adding the glue after 3-4 drops so they have failure. anything installed with improper techniques is more susceptible to failure and CA hinges are less forgiving when under those conditions. i appreciate everyones decision who has chosen to not use the CA hinges but they are hard to beat when installed correctly and will last forever.

kc