This is video of our shooter as of January 14th. We are shooting the full 54ft of the field and the shooter is 21 inches off of the ground. The blue square on the wall is the height of the 3pt goal.
http://www.youtube.com/watch?v=idiqASAt_Y0
And yes, everyone in the room had safety glasses on.
From 27ft away from the wall we were accurate within a 6 inch circle.