Five pages of replies to my original thread asking about the correct surge protector to use, and still it seems no definite conclusion. One would think each machine's owner's manual would outline exactly what protection we need. If the answer is using a surge protector, wouldn't it make sense for the machine companies to build one into the sewing machine so we all can rest easily? If it's true that a surge protector is rendered useless after one incident, I can see why this would not be a good option. Isn't it amazing how elusive and complex electricity is?