Thanks to everyone who provided clarification on the matter.
Do Full STHs get to keep their seats even if they don't have a PSL?
Also, wouldn't flex plans not even have the same seat for every game in a season if the holder picks a mix of games where they don't have the same seat available for every game?
We have a quarter season flex plan and have the same seats for every game. I believe that my seats for the other games are sold as singles. I know when I've bought additional games, I can usually get my same seats through my rep or even through Ticketmaster.
Yes Full STH keep their seats with or without a PSL.
I think the small flex plans sit in different seats in the same area for each game, but some of the larger plans may get to keep the same seats.
I will say that last year, I had the same seats for every game. This year I could not attend the select a seat event and my 1/2 season is now split between 2 different sets of seats. Same section and same row, just around 1/2 seem to be seats 9-10, the others seem to be seats 5-6. The only game that differs is opening night since they make everyone take that one. I'm in row L of the same section.