Topless should work great...
Can anyone here imagine how much the house edge would go up as a result of player mistakes on account of guys getting distracted at the table? I think a nice rack in front of me would be too distracting to keep counts. This might actually work for a house. More ploppy mistakes, higher volume of players, easier to spot counters because they are unaffected by a well-mounted set of DDs. You also would get the just-turned-21-think-with-the-wrong-head guys frequenting the place, and they are frequently the ones with the highest neg. edge from mistakes.
Future joke around here if topless tables ever come to light:
"How do you spot a card counter at a topless BJ game?"
"It's not hard"