Originally Posted by rar indeed
I've treated these as paper 500s, but as you are based in JAX, word to the wise, to use the paper 500s ex-JAX, you should get to the airport extra early as you will have to visit the counter. Last Saturday I was there and there was 1 agent to deal with 2 departures... and most people were checking bags.

Very true! Not to mention our UX agents take a little while longer to process anything other than "Here is my bag. Thank you.".
Btw, what would I happen if I tried to use this (or any other paper upgrade instrument) and tried to use OLCI and/or the eKisok? Would/will it refuse to let me checkin?