Preloads are not addressed in the VEX U appendix. The following definition of Preload and rule <RSC3> seem to be in contradiction.
Preload – The Cube, one (1) per Robot, that must be placed on the field such it satisfies the conditions in <SG1> prior to the start of the Match.
<RSC3> Prior to the start of Robot Skills Matches, the Robot must use its one (1) Cube available as a Preload, per <SG1>. The other three (3) Preloads, and the two purple Match Loads, are not used in a Robot Skills Match.
<RSC3> references three cubes, instead of 2, and that it refers to "the" robot, as opposed to "each" robot. The definition of Preload is that there is one per robot.
So, for VEX U skills matches, does each robot get a Preload?
(While I'm here, can you add the robot skills rules and vex u rules to the tags? Thanks!)