The art on the LE cabinet has different background colors than the premium. That’s all it takes I guess

I think the signed collectible is the pinball machine.

This link worked for me without an instagram

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If you do, this is a good one.

Stern gives distributors their best guess as to when shipments will arrive. They get updates regularly, so your best bet is to contact your distributor and ask for the latest expected date.
In my experience, the dates are fairly accurate. I have had a game come a 2 weeks early and had one that kept getting delayed. It ended up being 3 months later than expected.
I would try not to think about it until the LEs are all out the door and people are getting their pro models. (Assuming the order of manufacturing info is accurate)

If premiums are 2nd mid to late oct makes sense.

I just remember reading pros were 2nd somewhere on pinside. I didn’t ask my distributor about that.