Have you read this?

https://www.knowyourslots.com/ainswo...s-do-the-math/

The end is most illuminating:

[UPDATE 1/21/20:] Some players doubt it’s an even distribution, based on feedback I’ve received. Michael Shackleford uses even distribution in his assumptions, and other players seem comfortable presuming it is. Gambling’s a tough business, with trust in short supply (just like at the Myths vs. Reality bucket on this site of things I’ve come across.) This may weigh which calculation you favor.

On the other hand, AGS’s machines have a reputation for Must Hit By progressives that largely pick values from near the top end of the range, which means you can’t do math that relies on the midpoint of the current progressive number and the top end.

I've long suspected that must-hits are a scam, and that the range is very disproportionately near the top. It's legal as long as they don't rig it to the top, but just heavily skew it that way.

I would be very afraid to start hitting it at $97,xxx.