Facebook Scrabble ( David Sutton vs Adrian Tamas)

David Sutton and I are having quite a Scrabble marathon at the moment. We played 222 games and the score is 111-111! I took 239 blanks and spotted 491 bonuses, while David only took 211 blanks and found 436 bonuses. I wonder if the six extra blanks are the result of a glitch or the result of human error...