In 2007,  FIRST revealed “Rack-N-Roll” challenge, and immediately Trinity built the rack and brainstormed and built 6 robots.  Again, building robots with effective arms proved difficult.  A simple fork lift robot proved the most durable and scored easily on the lower rungs.  Holding the tube horizontally proved the most effective way to deliver the tube.  It became apparent that scoring on the top rung could be overwhelming.  One of the Trinity robots employed a simple four bar linkage that eventually was incorporated into the actual FRC design.  Mini-FRC was again demonstrated in 2007 at the UTC Regional.