Not sure if you've already seen it, but here's our build season video with our robot reveal in it for "Freyja" which has a JVN style intake, but we opted for a back loading pivoting ballista/crossbow style launcher instead of a catapult.
http://www.youtube.com/watch?v=9KxsA...e_gdata_player
In the past few years, notably 2012, 2013, and 2014 my team has done a design that breaks away from the norm of design of lot of other robots. We do this intentionally to challenge our students, and now with Ri3D we try to not copy their designs entirely, or at all. In 2012 we had a short shooter that could stack a robot on top for double or triple balances, in 2013 we had a tall disk shooter that pivoted and organized disks linearly instead of stacked in a bucket style hopper, and in 2014 we did our launcher instead of a catapult.