I buy the spinners without jigs and add my own hand tied jigs .
At one time I was swapping out the swivels for ball bearing swivels but I’m not sure it was cost effective.
I wanted a jig spinner that would I was sure would spin at a slow retrieve .
You can buy Betts jig spinners in a five pack . I like Hildebrandt spinners the best but they cost double or more .