It don't have to rotate... I have built many spinnerbaits with just an eye coming out of the lead instead of the hook. Then use a split ring to attach the hook. Allows you to use and length any size hook of your choice. The hook stays upright but can swivel back and forth sideways. Videos have shown me that when a fish sucks the bait into their mouth, the swiveling hook is also pulled in. I believe the bite to hook ratio can be better, as well as the fish has far less chance to throw the hook as the weight and ridged bait cant be used as leverage.... I have made some of these with the Gami EWG Finnesse hooks in 3/0 or 4/0... I cant remember.
The split ring allows for use of trebels, double hooks or none for practice days..