I can’t speak for all Stern games within recent years, but I’ll use my Rush Premium as an example. Playfield operation only, not discussing cab art.

Pro: didn’t have a close enough experience to an LE, had things removed, that I enjoy with the game. VUK, integrated drum clock, moving ramp. To some, not major components to jump from Pro to Premium, in my opinion it does add to the overall experience.

LE: Top of the line, all the bells and whistles, full playfield, expression lights kit.

Premium: Great middle price range, you get the full playfield experience as an LE. Big differences vs LE is cosmetics. Different art package, no side armor, no expression lights kit(though LZ light kits work for it).

I love my Premium and feel no need to step up to an LE. I’ve installed the LZ lights into mine, and love the overall experience of the machine.

Regarding the machines you mentioned, that’ll have to be info from those owners.