[rich2202]

I don't know the details of the District rules, but think about it this way: Whatever you can do at a Regional.

So, the 30# is a static one-time 30# of parts until the District Event is over. You can add 10# to your robot during the 6 hour period. Taking weight off the Robot is not relevant. That 10# of parts added to your robot counts against your 30# limit for the entire period. So, you have 20# remaining of your Withholding Allowance (not 30# again). So, what you propose to do (10# during the 6 hour period, and 30# at the District) is not permitted.

I have no idea if you have to "declare" your 30# prior to the first 6 hour period. If not, that gives you one advantage over a Regional. Your 30# is "flexible" as your work on the robot.

Note: The 30# is only for fabricated parts. So, if you can leave the motors off, and add COTS Motors (or other parts) during the 6 hour window, then the COTS parts do not count against the 30#. For example: Let's say the Shooter weighs 10# with the motors, and 6# without the motors. You have a 6# shooter without motors when you unbag for the 6 hour period. You then attach 4# of COTS motors to your shooter, and then mount that onto the robot. For Witholding purposes, you only used 6# of fabricated parts, not the 10# weight of the entire assembly.