darn, i just spent all this time using microsoft paint to draw out the different float techniques hahaha :twisted:
I'll post them anyways!
Slip float
The advantage of using this setup is that you can fish different depths very easily. Just slide the knot to desired depth and cast out. Another huge advantage is that you can reel the knot through the eyes of of the rod, this means that you can fish 10 ft deep, but not have to cast with 10 feet of line out, like with a fixed float. The bead is there so that the float doesn't come in contact with the knot.
Fixed float 1
Some people use this setup as well. It's the next best setup for crappie in MY opinion. You can slide the line through the rubber tubing/sleeve easily and adjust the depth. If you're fishing very shallow exclusively, this is a fine setup.
Fixed float 2
I do not like these as much as the above two. Simple reason is that the spring tends to crimp the line, in a way, weakening it. But I guess it doesn't do much damage if you're using a leader, and clipping the fixed float at the main line. For crappies, I never use a leader, but you may.
There are probably other techniques/ways to use floats, but this is what I know and what I'm comfortable with. Others may agree or disagree, but feel free to give you input :x