I have been on their notification list for four different models--all MarkHD models.
Crickets
I got a 4.5-18 I still need to mount up from playing the notification/purchase within 10 minute game.
I would do like Hogrider and place an LE/MIL order through the back door.
Nothing should prevent them from being able to presale you a scope for when it becomes available next.
Every inventory management system allows for backorders to be placed against their stock so not sure why they couldn't...
No different than making a sale, actually its what all wholesale orders are entered in as most likely.
Not to mention it would probably help their supply and demand forecast by pulling orders like that and having them lined up.
Might turn into a scenario where you're waiting 13 months for a scope just like a Bartlein/Kreiger/Proof barrel tho, so count your blessings