I only use electric knives on trout.The Black & Decker electric knife is only about $12.00 @ Amazon, so when it breaks it's no big deal. I keep 2 of them at the camp. For redfish, the best way to go is either the Bubba Blade 9' Flex Blade Fillet Knife, about $55.00 at their website or the Dexter Russell 9' Serrated Utility Knife mod# S142-9SC-PCP, about $27.00 at Amazon. Both of these are pretty much indestructible and will last a very long time. Just my opinion. Redfish & Drum are just too tough on electric knives.