Maybe we just see it differently? When I see a bounce, it's more like a nice cycle followed by an all red cycle, and then #s coming back down after that. And often the reds appear either early in the cycle, like a +9, or right when there's poop-out, so maybe +11.5 or +12, or whenever poop-out hits. Here I see a prolonged ride in greens, and then #s higher most likely b/c no shot. I don't see any sudden zoom, and I don't see any zoom to really high #s, just pinks which aren't out of the ordinary for Henry. And the drop doesn't look all that steep to me - certainly not gentle, but not something like screaming down from a red to a green in 3 hours - so to me it's debateble (sp?) whether it's a bounce-causing drop or not, probably depends on the cat. Since I don't see any zoom, I don't see any bounce.
I think I see what you are getting at (maybe?), that sometimes you see a good #, then things are wonky, and then it kind of settles back to a good #, sort of like their body adjusted back to the dose and went back to good #s. I just haven't seen that actually happen with too many kitties though - more often I've seen people lose progress from over-reducing and then hovering in higher #s, and then needing more insulin to get back to good ones.
There's also a possible ProZinc vs. PZI Vet difference, so I wonder if that is part of our perspective being different. And also if I recall right, Harley tended to have fairly gentle numbers, while Bix saw a lot of reds and blacks, so maybe what to me looks like fairly moderate numbers and no bounce, to you looks like a bounce, based on what seemed to be bounciness for our own cats.
If there's anything recent in the SS that looks bouncy to me, I'd say more it's back on 4/24 - not too high PS the night before, red PS in the morning followed by all pink cycle, then back to a blue # the following day. There could be other explanations, but those #s follow a bounce pattern to my eye (presumably from whatever happened overnight), while these don't look clearly bouncy to me.
Anyhow.... no worries b/c he is in decent-ish #s, so I don't think there's any urgency to know for sure, or go one way or the other on the dose. I don't think it would be any big risk to raise the dose, but I don't think there's any big harm either in holding it.