This is what Paul Oscher told me he does -- for the 1 hole as well. He's another guy who tongue blocks everything. MN I picked up Billy Arnold at the airport for a harmonica seminar once, and, specifically asked him who did TBing,even pulling out my harp and showing him the slap and all, he said "Yeh, that's how lil' Walter did it, that was good enough for me. Pete G.