i can't even guess, richey. wish i could, but typically we would say that unless a cat goes under 50, we wouldn't reduce. when we did reduce we would do it in increments of .25units. HOWEVER, it's not following the protocol at all, but just responding to your particular situation, i guess if i were you i would probably drop it tonight by some - how much over he is, i just don't know. my guess is you could anticipate another high number by this evening, based upon the patterns you've been seeing plus a skipped shot this morning. i think i'd reduce anyway and then try to get a mid-cycle test to see what's happening.
we may have missed his ideal dose by increasing by 1units there at the beginning. back in september when he started, if your spreadsheet really starts when he started on lantus, he was only 8 doses on 1unit and then increased to 2units. normally we would say a minimum of 10 cycles (doses) to start with before changing the dose at all, then only changing it by .25unit and allowing each dose change to settle in for at least 6 cycles before changing it again, unless the cat went below 50. so he could actually be way overdose, but i don't just want to say drop back to 1 unit and start again. if you want to even consider doing a drastic change like that, i'd want to get some people with more experience than me laying out options for you.
it's really a mental mind-switch to change from humulin dosing to lantus dosing, because lantus dosing is all based upon the lowest point in each cycle.
i totally get the budget issues, of course. this little diabetes party is expensive. unfortunately any way you go with lantus you really need to know how low the cat is going on a particular dose, and it's only the mid-cycle tests that tells that. it's simply the only way to keep a kitter safe while on insulin. there are some folks who will help with $$ issues if that's what's preventing you from being able to check mid-cycle. i can try to connect you there if that is helpful.
not trying to evade your question, but without seeing anything in between i truly don't know. i think of the spreadsheet as being like a jigsaw puzzle. the preshot numbers are like the edge pieces, but the mid-cycle tests give us the picture itself. does that make sense?
what are you thinking you might like to do?