It appears Questec has the same problem I do.
"A core weakness of the system is that it consistently misses certain types of pitches, mostly sweeping pitches (sliders and curves), as well as late, hard, 'boring' pitches such as the cut fastball. These pitches can land all the way into the opposite batter's box, but because they caught a tiny slice of the front corner of the plate, the computer calls them strikes. No umpire who values his safety is going to call a pitch that lands in the opposite batter's box a strike. "
http://www.baseballprospectus.com/ar...articleid=3326