There's been a few really good discussions on this over the last couple years and some have some sketches with them. Concept is right on, that's for sure. I'll use anywhere from 6 inches difference from hook to hook to 30 inches hook to hook. Water depth and if they're holding tight to a certain depth determine that. If I have them zeroed in and a certain depth, I'll tighten up the hook distance. I don't use swivels, loop knot and lately, I've changed my way to tie the top one on. Slide the top hook on and then tie the bottom hook on. Move the top hook up the line where you want in and tie a triple look knot. Once you do that, tie single loop knots starting at the main line about every inch til you get to the hook. It hakes the hook stand out away from the main line when you're moving real slow
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