For now, it would seem so that Ti does get lower numbers at around +6. It may change for Ti in the future. As time goes on and as you gather more data and Ti gets lower numbers, it will become clearer.
Even after 3 months, I'm still trying to figure Ming out and sometimes, he'll throw a surprise at me. Ming is NOT regulated yet so right now, he might be going low at +5 and +6, but he might change that up one day. Sometimes I'll get a low PS shot. Why? I don't know.

Maybe his dose is too much or maybe his pancreas decided to work for a bit. But the silver lining is: when Ming gets unpredictable, I get to learn and when and if it happens again, I'll have an idea of what to do. Same will be for Ti. Although, I wish for you and Ti that you both have an uneventful FD journey. Sometimes I stumble across a member's whose kitty gets quite close to being regulated within 2 months. It's beautiful when that happens!
The +8 low is an example I was giving in Ming's case and even then, I'm not 100% sure he always goes low at +8. Again, the patterns specific to Ti will reveal itself the more you test and as time goes on.
I want to say yes. Maybe another more experienced member can confirm this. I hadn't thought about if a nadir can be different between the AM or PM cycle.
I think it will be easier for me to show examples of when bounces might happen first (again, a more experienced member might add to this later):
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when kitty sees a lower number they aren't used to so the liver will "panic" and make more sugar. For example, a kitty just starting insulin might have been used to numbers above 400+ for a while. So when you give kitty insulin, kitty's BSL goes down. It might encounter a number like 300 or 250. That's not low in the general sense but kitty hasn't seen 250 for a while now. And the body thinks 400+ is "normal" and sees 250 as TOO LOW! So the liver releases a bunch of sugar in attempt to get the body back to "normal". The next few cycle might be high and flat for a while. Overtime, the goal is to get kitty to go low more and more and for the body to recognize these lower numbers as good, healthy numbers.
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when kitty's numbers go low TOO FAST! Same concept. The liver panics because it thinks its going to go hypo or too low and releases lots of sugar. The next few cycles or numbers become really high as a result of the natural/excess sugars produced by the body.
Some cats might not bounce or will only bounce for part of a cycle. Some cats might take one cycle to get over a bounce and some cats might take 3 cycles to get over a bounce. Insulin and the L insulin's depots helps to push bounces out as well.
Sometimes yes. Again, ECID. On 1/12, Ti saw yellow for the first time. Then at PMPS, saw a 576. The 576 might have been a reaction to the low number OR just the insulin wearing off OR a combination of both.
For these questions, again, maybe another member can answer.
But I think what's more important is to figure out what Ti does. What does Ti do with his low numbers after? When does Ti go low? Does Ti go low at night? How long does it take Ti to clear a bounce? Does Ti even bounce? How dramatic is Ti's bounces?
It's hard for me to interpret Ti's SS since I'm still learning and quite new. I'll leave that to the other members.