Over the years, I've read posts or talked to guys who claim an electric filet knife is the way to go. I never thought it would make a difference and just stuck with my manual filet knife sharpening it as needed. I finally broke down and bought one I found on sale a couple months ago. The first time I used it I couldn't believe what a difference it made. Much faster & cleaner than I expected. I'm hooked and wish I had bought one years ago. If you haven't tried one you really should.