Penalties - which ones are most common?

[CrashTestPilot]

So to those who participated or watched first week matches, what penalties are most commonly issued? Are they mostly due to human error, inferior robot design or rather bad luck?

What I gathered so far from reading week 1 notes, ball protruding more than 3" into frame perimeter is most common. Is this mainly because of fault with basic robot design (frame not built with provisions to stop the ball from getting under the chassis) or is it rather an effect of game play (less obvious design flaws that may not have been discovered during testing? For example, should a driver of a robot with roller type ball magnet be concerned about approaching a ball pinned against wall or another robot? Will robot momentum and ball magnet roller have the unexpected effect of robot driving on top of the ball? How many balls are getting dropped and stuck above the bumper perimeter?


Next frequently quoted penalty is for robot violating size restrictions if they start elevating before the finale period starts and have an unsuccessful attempt, try to reposition and loose contact with the tower.

Also, kicking out of bounds and tipping other robots. What else?

TBA and official FIRST site shows final match results and overall team ranking, but I can't find info on penalties assigned per match. Is that tracked anywhere?