He was pretty low yesterday and you would have skipped if you'd gotten a pre-test.
Since the objective is a dose you can shoot every 12 hours, safely (no nadir below 50), without skipping, I'd stick with the 0.5 for 3 full days and watch the nadirs carefully.
And if you review last nights posts, Hilary recommended reducing while you're on travel status.
Plus, Moos having some appetite issues & stress affecting his eating, so maybe ride out 3 days and see how things shake out.