[Deetman]

Treat it as a flexible Thursday of a traditional Regional event at your own shop. You wouldn't be able to bring your practice robot in and Thursday and use it, as such the withholding allowance is your limiting factor. At least, this is how I and my team have read the rules.

So, assuming your robot has an arm that is less than the withholding allowance, you take it off right before you bag your main robot on bag day. You attach it to your practice robot and work with it until your first event in week 2. In your time prior to unbagging your robot in the access period you remove it from your practice robot and verify it is still less than the whithholding allowance. You then proceed to unbag your robot, attach it to the primary robot, practice/do whatever, then bag it back up to go to competition.