I wouldn't put too much weight on it... I tried it without much effort on my so-so Dell desktop display and got 59. Tried again on my RMBP with even less effor

I wouldn't put too much weight on it... I tried it without much effort on my so-so Dell desktop display and got 59. Tried again on my RMBP with even less effort and got 14. However, I did have trouble in the same places both times so it's certainly demonstrating something. Dell: http://imgur.com/MFvcSky http://imgur.com/MFvcSky RMBP: http://imgur.com/61WlVQS http://imgur.com/61WlVQS