I fish more sliders than poppers for smallmouth, bass in general for that matter, but I fish them both the same way. A little bit more aggressive than he does. I was taught to let the splash rings dissipate before starting the retrieve. I still do that. A couple of quick strips, pause, then I might do three or four strips, before the next pause, rinse and repeat. I've had bass hit my fly as soon as it hits the water, but I would say most of my hits come during the pause. Most of my bass bugs are between two and 4 inches long. I use a heavy duty thread furled leader, made for me specifically for bass fishing. They're 4 to 5 feet long and I use a 5 to 6 foot long piece of fluorocarbon, usually 20# or 25#. No problem turning the larger flies over with it.
My next serious attempt at smallmouth will be at the end of August when I head up to a lake in NE Ontario. Very clear lake you can see bottom in 8 to 10 feet of water. I had some top water action last year, but the larger bass were on shoals and rock piles in 15 to 25 feet of water.