[Al Skierkiewicz]

From a 2003 883 Manual...
Resetting Calibration to FIRST Pre-calibration:
1. Power OFF the speed controller.
2. Press and hold the Cal button.
3. While continuing to hold the Cal button, Power ON
the speed controller.
4. A flashing GREEN indicator denotes calibration is
reset. Release the Cal button.

I will make an assumption from this part that flashing red indicates a failure to return to factory calibration. This became a non-issue when it was realized that all joysticks are not created equal. Calibration to the joysticks used was highly recommended after that. I believe the 884 became available in the 2003 season(after kickoff). By 2004, 883s were not allowed on the robot per the Inspection Checklist. The change from red to blue labels on both the 883 and the Spike gave a lot of confusion during that transition. There was a period of a couple of weeks where red 883s were not allowed even though some had been provided in the KOP that year.
There is significant hardware changes in the 888, the FETs, for one, are different.