Hook or jig, with a split-shot about a foot above it. The split shot serves two purposes; it acts as a bobber stop in the ‘down line’ direction, and also if a fish swims up or sideways with the bait, the split shot keeps the line going to the bobber straight so that you can easily detect it.
Next comes the bobber. The line just threads through it. Seems the most common mistake I’ve made is using a line that is too stiff or too high diameter, which means the bobber doesn’t slide easily on the line. Above that you can either use a commercial bobber-stop (about 30 cents each, if I remember right), or tie a bobber-stop knot. It’s a really easy knot to tie, so I usually just do that. For that knot, I like to use a much larger line, even 15lb test. If you tie the knot correctly, it should stay put when you pull with a couple pounds of pressure, but slide up and down the line if you put the tacks to it. Doing this sets the depth of your bait.
Remember, if you’re using mono, this is a nylon-nylon mate, and will burn the line if you don’t wet it before you slide. You will be able to reel the stop-knot through your guides and onto your reel without noticing it. If it’s too big, you might notice it when you cast, but normally this is not a problem.
Threading order is, bobber stop (if you don’t tie your own), bobber, split-shot, hook/jig. Sometime in the next couple of weeks I need to get my boat out for a shakedown cruise before our big spring trip. If you want to meet somewhere here in NE Iowa, I can show you how I do it (not that it’s the right way). PM me if your interested.