You are NOT a PIA except maybe to yourself. Been there....done that. You are doing exactly what so many of us do. You are looking for the black and white perfect answer that meets both Little's and your needs. It doesn't exist because unless you can stay with your kitty 24/7, which none of can, there will be times when you have to take the next best answer.
The last vacation I took, I didn't reduce as much as I should have (wrestled with much the same things you are.... not wanting to lose momentum). My sitter was testing and was terrified (as was I) when my girl threw her a 48 the 3rd night. Needless to say, the dose got skipped that night and considerably lowered for the duration of my trip. Menace was no worse for wear in the weeks to come.
As for the dose dropping all of a sudden, it happens. With my girl, a few months before she went into remission, it was like someone flipped a switch and I suddenly felt like I was "drowning" in a TOTALLY green SS. I learned that sometimes I had to skip shots or reduce dose in order to keep my life together and quite frankly, I never regretted it. Better to take a safe course and deal with any setback should it happen, when you get home.