Look at him go!! That's awesome!!!
We usually don't suggest dropping from .5 to zero so quickly though, but since you've already got 4+ days, might as well see how he does!! We usually suggest going from .5 to .25 and then down to .1 so we give the pancreas as much help as possible so we get a really strong remission.
If he can stay in normal numbers for 2 weeks, he'll be officially diet controlled!