I've tried a few different types and now run sanded fiberglass rods like meatsticks. Awesome sensativity and I feel like I know and control what my jig is doing better. If I had to suggest a good spring bobber rod it would be the scheels brand rods that have them built in, my buddy has been using one the last 2.5yrs and does good with it. I had problems with clip on and the ones you put into the guide, either you ice up at the wrong time or the clip comes loose.
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By the time I got tired of testing spring bobber attachments I could have just bought a rod and I was off and running with confidence