Aleratec Roboracer Duplex Codes

From the two sources I mentioned last week, here's the codes laid out:

CR+LF  #clear input buffer
!BNKLF8E #both LEDs off
!BNKFG89 #both LEDs flashing
!BNKLG8F #both LEDs on
!BNKSTA3 #attention/no-op

!BNKDP90 #release one disc from the top disc loader

!BNKRG95 #top handle turns a small angle
!BNKRB90 #top handle turns a big angle
!BNKRH96 #top handle turns back to origin

!BNKPG93 #bottom handle turns small angle
!BNKPB8E #bottom handle turns a big angle
!BNKPH94 #bottom handle turns back to origin

BNKR*, the "R" seems to be Reader/Writer
BNKP*, the "P" seems to be for Printer (lightscribe)

Notice that the 2 hex digits on the end of "P" commands are 2 less than the "R" commands. It makes me wonder if those 2 digits are analog.