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I think the concept of launching has many people in first worried. The calculations we did about launching a ball came out to be
65-75 degrees is the ideal angle, but you need something about 7.8m/s just to get the ball over the rack when ur 3 meters away from it. Something that fast in Very dangerous in the wrong hands 
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These numbers are similar to what we've come up with. I'm not sure where 22m/s came from...
From the rules:
Quote:
CROSSING: The act of a TRCKBALL or ROBOT passing through the plane defined by a line (i.e.
LANE MARKER or FINISH LINE) when it is projected vertically upwards. A TRACKBALL or
ROBOT shall have CROSSED a line when all parts of the object, while traveling in a counterclockwise
direction, have completely passed through the plane.
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HURDLE: When a TRACKBALL CROSSES a FINISH LINE while passing above the OVERPASS
and then contacts either the floor or another ROBOT before re-contacting the originating ROBOT.
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Inherently, to hurdle one must also have a vertical projection on the ball. They have left the door open for teams to shoot the ball over the overpass. I think <R01> is there to ensure a compressed spring isn't being held back by shoestrings or other objects that could easily release energy outside of the arena and really hurt someone. I do not believe it's there to inhibit
how you get the ball over the overpass.
You can't be afraid to fail if you want to launch the ball. It's a gambit, and the rules have technically left the option open for you. However, if you keep shooting balls out of the arena at refs, then perhaps they will deem your bot unsafe, but that's your driver's fault
