You know I'm not a big fan of TTB.. but I believe this to be the most misunderstood statement. If the pitch is high in the zone, posture emulates that location, the barrel doesn't turn under the ball, it turns on the same plane as the ball. I see no disadvantage with TTB on a pitch up in the zone.I think if the first move is to loop (turn) the barrel under they are in trouble for any pitches up in the zone.