It looks like you are getting a fairly short duration from this 2.5u dose, which usually means the dose is too low. You did get a yellow number last night, but picking up the dose by 2u right back up to 4.5u makes my gut say "don't do it" even though that's the dose you were at. The body can fight huge dose increases, and we don't want to add that to the mix. What about taking the dose up by 0.5u - making it 3u twice a day?
You do have the option to shoot early for this cycle since it looks like he gets to those 400s and hangs there for 4 hours until shot time. Just know that it will throw off when your next shot will need to be, so only do it if you can adjust your next shot too. I wouldn't shoot any earlier than +8 or +9 though.