The Abyss Jr arrived and was defective.
However, I was able to determine that I actually need its big brother, the Abyss II...
(The Abyss Jr doesn't let you lock it on a single color)
Unfortunately, Musician's Friend doesn't have the Abyss II in stock, so I'm getting a credit on that purchase and ordering through wwbw.com aka music123.com
Another week probably to have it in hand... still plenty of time.