I think it just calls for a bit more patience...Salem had some nice greens night before last...sometimes a decrease can cause them a little backsliding...it you don't see any greens in 3 days from the last one, you might want to consider going back up.
Luci has done that to me a lot - just about the time I think she's done all she can do on a dose...she'll hit the greens..usually when I'm issuing a dose increase threat...we play that game all the time...and go back and forth, back and forth...
Have a good one Tina!