Tried to search for "PA PB" and was told that the terms were too short. The FAQ sticky also did not appear to contain the information I am looking for.

I believe PA is for using certs, and PB using miles, and assume PA has higher priority than PB. I would appreciate any assistance in locating threads for more information, here are some of the questions I am looking to find answers:

1. Does PA gets completely cleared for upgrade before any one on PB?

2. Are these waitlists only in effect at the airport, and under airport control?

3. Or are they created prior to the day of travel when there is no upgrade inventory available?

4. Would someone on an Intl H fare with mileage upgrade be trumped by someone on a lowest fare class but using a SWU?

5. What is the precedence of clearing upgrades? Fare class, MP status, time of check-in, time of upgrade request, upgrade instrument, perhaps a combination of some/all?

6. Can you find out which waitlist (if any) you are currently on for a particular PNR?

Edited to add:
7. My 1K wife is sponsering one of my trips using a SWU. As a 1P, which list would I be on? PA due to the SWU, or PB due to the 1P?