I really can’t say a whole bunch except they are designed specifically for catfish but will also work on other species. Theres a line guide on this dehooker similar to the one posted in the link above, to position the end of the dehooker where it has to be, next to the eye of the hook. I really can’t say too much because theres some pretty good designers out there, so I can’t say much other then thier made from stainless steel and are very ruggedly built and over and above my previous design and will pull hooks up to 10 ot. size. This same design will work on salt water species with even bigger hooks but the measurements have to be found out and made. Its impossible to make a one size dehooker that pulls hooks from the small mouths of bluegills and remove bigger hooks down the throat of big flatheads, plus many other ocean species. The design will be the same for the three sizes I’m planning on making, its just the size is diffrent, it should work great for ice fishermen but again was designed for catfish. In most unhooking situations the hook is close to the lips of the catfish and this is where this dehooker shines and dehooks very quickly. It also works very well in deeply hooked fishs throats, even where you can’t see the hook. It will take just a little practice to get it to work on deeply hooked fish but once you get it down it works very well.
I’m making some prototypes this Sunday for sending out to a few guys for thier feedback, then going to take that feedback to my funder. I’m going fishing up on the Wapsi river two weekends from now to fish for channels with my funder and going to show him how it works and hopefully if theres been enough time to get back a few reports from the guys who are going to try them, then take it from there.
I also have to draw up pictured drawings with a human hand useing this dehooker for an explaination along with worded instructions to send with the prototypes. Theres a heck of alot of work involved once a guy finds out what has to be done to get something, even simple, going.