DauntlessPhoenix

Question regarding these two "limited time" free slots in comparison to the free slots given as veteran rewards. If I claim one of these available three slots, which am I using first - the "limited time" ones or the "veteran" ones?

I ask because I have an idea what servers I'll put two of them on, but I don't yet have an idea where I want to put the third. I'm hoping that I'll be able to place the "use-it-or-lose-it" ones first and save the veteran slots for when I know where I want them to go.