I'd hold the 1.5u dose for the moment. Pax got a green on the 10th and appears to be bouncing and it can take up to 6 cycles for a bounce to clear. You're only at the 4th cycle post green and you reduced the dose for one of them.
In addition to Linda's comment above, with TR, when you change a dose, even if it's a matter of shooting a reduced dose due to a lower pre-shot number, the cycle count starts over again. Right now, you're at 2 cycles at the !.5u dose.