I used to fillet using a electric knife by cutting from the head down to back bone then to tail then flipping the attached skin plus filet and ribs over then continue cutting the filet and ribs from the skin. Filet the other side then finish the rest of the fish then go back and cut the ribs off of each filet.

Some time ago on c dot c someone posted a video or a link to a video showing crappie being filleted using an electric knife where they used the electric knife to remove the ribs while the filet and skin was still attached to the fish then they continued their cut removing the rib free filet from the skin. When I used this method I found I needed to be using a curved blade to scoop the ribs off of the filet. I found I liked this method because I didn't have to go back through the pile of filets and remove the ribs. Now the pile of filets is ready to be rinsed and bagged.

I tried searching c dot c and youtube and could not find that particular video that I first saw of the ribs being scooped out using the electric knife. I did find this video where this fellow is using that same technique only he is doing it with a regular filet knife.

How to clean Crappies - YouTube