Right now I'm using an American Angler (grey body), a Mr Twister (green/yellow body), and a GE (brown/white body). They all work fine, even though they're all quite old. Probably have 5 or 6 sets of blades for them (combined), but really prefer using the Berkley 8" Slim blade in the Mr Twister electric knife. I only have one grievance towards the Mr Twister knife, and that's the coiled cord. Sometimes the outlet isn't all that close to the cleaning table surface, and the coiled cord under much tension will pull the plug out of the outlet. It would be much better were it to have a straight cord IMHO. I have even heard of people switching the cords out, just for that very reason.