Bob there were hinges in the past that were indeed were a flexible (certainly not flexible enough though. This goes back a lot farther than two years and was generally from early arfs and kits before the fibrous CA type hinges. Yes the advice of the time intended to mount those type of hinges with epoxie but my best advice would be to discard them immediately.
This does not mean you have to go to pinned hinges either single point or flat type though. modern fibrous CA hinges when used with thin CA works very well indeed and there are ca hinges for all types of airplanes. There is nothing wrong with CA hinges and are tremendous time savers. Get good hinges from tower or Sig. I Fly and operate a fairly eclectic and wide variety of airplanes in both performance and in size, must confess most (not all) of my stuff I an quite happy with CA hinges.
John