It looks like his cycle isn't flat, but he does have room to move down (assuming that he climbs from now to pmps) The one unit seemed too high. The .75 not quite enough. What do you want to do? Choices include a .8 or a .9 (pretty much a skinny one unit) If I were you, I would want to be around during the cycle to monitor at least at midcycle if I increased the dose. Other choice is to wait a cycle or so on .75 to see if he is a cat that needs to settle into a dose.
As you see Nadja, this is not an exact science. More of a try and see. What are you thinking?
Whatever you decide will give you data you can use. And you know how to manage the lower numbers if you see them.