I think he's talking about something like that, but not actually dragging the jig along the bottom (like a Carolina Rig), but just off the bottom.
If I did that I'd lose a jig about every other cast where I fish (and I use weedless jigheads).
I hold my rod up at a 45deg angle, reeling slow enough that I'm constantly keeping a slight bow in the line. I watch that line and set the hook whenever I see it move/jump and I know I didn't cause it to do that. I'll also set the hook when the line suddenly goes slack and I know the jig cannot be on the bottom. My hooksets are not so much "hard" as they are "fast".
I've pretty much dialed in that my 40ft cast & slow retrieve will result in the jig reaching about 8ft deep at its lowest point in the retrieve. If I want it to go deeper I can slow the retrieve, pause the retrieve, or if in deep water I can count down a few seconds after the jig hits the water ... assuming that each second will allow the jig to drop about 1ft (more or less).