Hello, this is my first visit with Scout, welcome to the forum
Today AMPT=399, +6=88.


!!!
That jump really scared me.
So I fed his lunch -wet RC and put in a good measure of RC dry duck. He finished it all & is alert and a walking around the house.
I plan to retest at +2.
If you have just got that 88@ +6, I would suggest that you perhaps check at +7, just to make sure he is coming up after his lunch. Such a large drop will probably trigger a bounce and you will see the numbers shoot back up by pmps.
It doesn't say on your signature which dosing method you are following or want to follow, but given that he eats dry, it sort of limits you to SLGS, so that 88 would have earned him a reduction to 1.25u (on SLGS we take reductions for drops below 90 on a human meter) Your vet, will most likely recommend a larger reduction, but we find that can be counter productive, and can see your cat end up spending unnecessary time in high numbers.
If Scout is feeling better and getting over his P'titis flare, that may be impacting his numbers favourably.
Are you able to test at all in the pm cycle? it doesn't have to be at +6, in fact it's preferable if you move those midcycle tests around, cat's do not always have their lowest numbers at +6, George usually nadired at about +5/+6 but he has nadired as early as +2 and as late as +13. In the evening getting at least a before bed test would be very useful.
I suspect his numbers will come up since you have the food you have given him is quite high in carbs, especially the kibble. Reading through your previous posts I can see that your vet recommended the renal diet, George is in early kidney disease, I feed a high protein (good quality protein) diet that is low in phosphorus and I have been able to manage his kidney levels and have them stabilised, with marginal improvement. If this were me I would really look to finding a food that is below 10% carb and low in phosphorous (we are in Europe so I can't help you with that), the diabetes trumps the kidneys since unregulated diabetes is hard on the kidneys getting the BG regulated is a priority.
From Tanya's CKD site
Diet for Cats with Diabetes and CKD
If you are dealing with both diabetes and CKD, it is more important that the diabetes should be regulated, and in fact once this is achieved, you may find the CKD improves too.
With diabetes, the focus is on carbohydrate control (see above). This is not a problem for CKD cats but people dealing with both diabetes and CKD are sometimes anxious because it appears that the protein requirements of the two conditions are incompatible. In fact reduced protein is not necessarily essential in the treatment of CKD in the early stages, see Nutritional Requirements for more information.
Even if your cat's CKD is more advanced,Keys to management of diabetes in cats(2011) Little S Presentation to the 36th World Small Animal Veterinary Association World Congress states "Current recommendations support the use of a high protein (> 30% DM), low carbohydrate (< 40% DM) diet for management of feline diabetes." A protein level of 28-35% DMA is often recommended for CKD cats so I would aim for a protein level of around 35% DMA for a cat with both conditions if your vet agrees.
However, the need to moderate phosphorus intake for CKD cats still applies to cats with both CKD and diabetes, and if necessary, phosphorus binders will need to be used.
One of Tanya's CKD Support Group members, April, has kindly created a short list of US cat food with less than 10% carbs (ME) and below 1% phosphorus (DMA). You can find the document here. I have not checked this in any way.
How often are you feeding? Most of us feed at amps and pmps with multiple small meals (snacks) in the first half of the cycle, I usually avoid feeding after +7. Some vet's recommend feeding twice a day, I noticed a comment you made on an earlier thread, but with Lantus in particular it's preferable to spread the food out and it's easier on the pancreas and you are less likely to get problems with acid tummy (ckd cat's can be prone to this)