Hi!
I have been reading your post throughout weekend-- you do have some interesting numbers the last few cycles. I, like Robin, was looking for an inverse curve that never developed. I also, suspected the friskies as the culprit, but who knows!
I went back and looked at my Chewy's SS, as his situation seems very similiar to Diablo's to see if I saw anything in his numbers that might shed some light on Diablo's numbers. First off, I Never Fed Chewy anything but Fancy Feast- so I know there was no food induced readings. But, I found it interesting, that when I initially changed his food form dry to wet, he decreased very nicely on one unit- like Diablo. But, after a few days he started having flat cycles-- just like Diablo is doing. In my comments, on his SS, it is reflected that I didn't know what was causing the cycles to flatten out. But, it appears, that an increase was in order for Chewy. I increased to 1.2 and got little positive results, so after a couple of days- when I knew I would be home to test, I increased to 1.5 units. After a few days, he started coming down very nicely and I had to start back reducing his dose withing days.
Now, was the 1.5 a "BAM" dose, or did it just take him time to clear all of the carbs? I have no idea, but it did appear that he needed more!
I am not sure that any of this is relevant to Diablo- but, I wanted to share it. You might want to glance at Chewy's SS in my signature.
I know that Every Cat is Different (ECID) but, sometimes we are able to gain some thoughts from comparing Spreadsheets!
You are doing Great! Good Luck!