I've been looking at the points growth for a while (like, 8 hours or so) and if it keeps up the pace, there won't be another multiplier coming. I don't think Lissa can make it, so I'd actually tell you to save your flags for the last round, but if you really wanna fight it up to the last minute, then spending would be your best bet.
To tell you the truth, I remember Priscilla much more because of this video than her actual in-game persona. But really, mine is more of a case of troubadour preference than anything else I was teamclarine from the start, but hush, don't tell anyone