bobbers or floats??? Some springs I find myself using an old style round bobber to catch crappie. Not a big deal, but always felt I could improve,

Just saw a video on crappie fishing where they were using floats. It looked like Thill floats, but I am not sure. They adjusted the float level by the split shot under the float.

Although I seldom use floats, I would like to know more about how I can use them more effectively. I assume the floats are most critical to the smaller jigs/baits. I wonder what size of bait is best worked with a float or bobber.

I just feel I am missing out by using some of the old bobbers. So, are there any bobber experts out there who are willing to educate me on bobber fishing?