Last year we reset our autonomous whenever the robot was disabled. The drivers didn't have to remember to reset for the second practice match.
Last year the actual sequence at the SBPLI Regional was:
- Disable bit set before the match started
- Both disable and autonomous bits set
- Then disable was turned off to start the autonomous mode
- Finally the autonomous bit went off as the user_mode came on
One team had their autonomous timer ticking off while the robot was disabled at the beginning of the match, so the robot always thought it was partway or completely through the 15 seconds, before they were enabled and allowed to move.