You should see these guys clean fish! Electric knives only (they use kitchen electrics, not fillet style knives). They can fillet out, skin and debone a walleye in about 30 seconds. After a trip, they get an extra dollar per fish for doing so.
To zipper a fillet: locate the lateral line/colored area that runs the length of the fillet, down the middle. Cut a one to two-inch notch in this line from the tail, then just pull the two halves apart(upper and lower portions of one fillet. They'll easily split right down the lateral line. Whichever half has the lateral line remaining, just grab the tail end and pull it out. It'll unzip cleanly once again. You'll end up with two long strips rather than one fillet.
Just passing on what I learned.



