For tonite, I think neither. I'm still trying to figure out the whole inverse curve thing, but I'm going to post another thread about that shortly.
If that AMPS this morning was really a 399. and not a 334, then this curve wasn't inverse, just a slight slope downward.... I don't understand this +6, however. But with the numbers you are seeing, which are all pinks, staying at 1u is not going to cause a crisis either way. I'd consider sticking with 1u tonight, and seeing what you get after sunrise in the morning.
Carl