Thanks for looking out, @Beacher. You are absolutely right, and I didn’t jump as fast as it may have appeared. I actually knew going into it that my basals were pretty agressive, which I wanted, but two days of that kind of crashing, and I figured it was a good place to start. I think tonight’s been better, which can continue to be true as long as I don’t look at my graph and see otherwise. 
Oh good! I’ve got plenty of material for you then.
[EDIT by @Michel : edited to split a thread: Using a higher basal than we absolutely need: one more treatment option]