We have been useing these jigs solely for the last year for trolling. They do just what the company says as far as hooking and holding onto fish. Other than that they fish just like any other jig. The flourochrome colors seem to make a difference in stained water also. They look like chrome but flouresce under water for better visibilty.
We see the company boats out on the lake often testing various stuff in secret so I can at least say they seem to work hard at making things that work.
Good luck...