Yeah, that's been my conclusion too, and I've been looking on and off for a few years now.
I recall reading around the time of the Sanctuary/Silverline lawsuit that some of the Silverline titles apparently didn't even sell 500 units, so it's possible that it sold a few copies and the rest were returned to the manufacturer and destroyed. Obviously the odds are slim that it was released at all, and if it was the odds are even slimmer that the mix was discrete, but hope springs eternal!
I recall reading around the time of the Sanctuary/Silverline lawsuit that some of the Silverline titles apparently didn't even sell 500 units, so it's possible that it sold a few copies and the rest were returned to the manufacturer and destroyed. Obviously the odds are slim that it was released at all, and if it was the odds are even slimmer that the mix was discrete, but hope springs eternal!