I'm reading the FAQ on UA's website and it says:

"If an upgrade seat becomes available, waitlisted customers are confirmed automatically based on the Premier status of the traveler first, followed by fare class, Chase United MileagePlus Club cardholders, United Corporate Preferred participants, and lastly by the date and time of request."

Does that mean the waitlist is shared between Mileage Upgrade Awards, Plus Points, and CPUs (i.e. a 1K would clear on a CPU before a Gold using a mileage award)? Or is there a hierarchy between upgrade types (i.e. PP's always clear before CPUs, etc)?

I'm asking because I'm a lowly silver looking to use miles on a LAX-EWR segment, but there will almost certainly be dozens of elites ahead of me on that flight and I want to get a sense of where I'd be on the pecking order using miles.