[EricH]

Do you have any problems with ball escaping sideways in the harvester? Also, are you guys sure your flag holder (I'm assuming it's the little tube behind the collector) is high enough? You need to have the top of a 3-foot tube at least 1 foot above your robot, but less than 6 feet, and held by a 1-foot tube. By my calculations (using the ball in the picture and guesstimating), you need it about a foot higher. Other than that, nice and simple.