They have some good and bad,,,they are pretty accurate as far as spring scale goes,,,better than most, but you need a magnifying glass and light to read it.  The gap on the grippers is adequate for 20 lb fish but after that, forget em.  I would recommend the fish grabber's sold by Team Catfish, and get a good digital scale like Berkley's 100 lb one they have just come out with and take care of it---if ya need a set of 100lb scales  ;D if not the 65's and 50's work well enough.

And dont forget to attach a float to the handle in case you drop it in the water so you dont loose it. :)