[Tuba4]

Regarding the issue of goaltending while removing the doubler ball....

Remember what goaltending commonly means. In the basketball sense, it means interfering with a ball that would have otherwise gone in. If a robot is hit with a 5 pt ball when in the process of removing the 2X ball, I would suggest that should not be goaltending. If the robot had not been there, the 2X ball would still be in place and the 5 pt ball would not have been able to score.

Capping however is just the opposite. If you are placing the 2X ball and are hit with a 5 pt ball, that may or may not be goaltending, depending on whether the 5 pt ball would have gone in if the robot was not there.

Think of this in a similar fashion as the hanging ruling. That is, if the vertical bar was not present, would the robot still be hanging?