It's so easy to get into a rut or develop (and continue!) bad habits. I hope this generates some discussion of the basal/bolus breakdown.
I always quote the rule "get your basal right, then go on to your I:C and ISF" but I haven't thought much about what it means. Numbers are tricky; insulin is trickier. (good saying). You can set your basal to high and have it doing the work of bolus and it still works out-sort of...but is it a bad thing? And the formulas of percentage just don't always hold true (due to varied carb intake, etc)
So since I started insulin (5 years) and my pump (3 years) I've found I do a lot more tweaking of basal than I:C; but other people seem to say the same thing. I always say "I don't bother with basal testing, I just tweak basal rates according to results - 2 hours ahead of the "problem". I think I may need to eat those words.
Last Friday I had a medical procedure for which I needed to fast after breakfast on Thursday. Most people had to fast all of Thursday but they said I could eat breakfast since I was "a diabetic". I didn't bother to tell them that my pump keeps my BG steady even if I don't have food, because I like breakfast..lol More words I may need to eat. I went to bed at some reasonable number (110 I believe) and woke up at 40! Huh??
Backtrack: I've been waking up high consistently for awhile now and have slowly been tweaking my basals to fix this. The numbers are less severe, but still a ways to go. I repeat..."40?? Huh?" Followed by: "Hmmmmm..."
When I got back home I took some time and studied my log book. (3 weeks on a page). I had a few highs at my 2 hour dinner pp but not many. I had a few highs at bedtime, which I corrected. So based on that info I had concluded it was not the I:C but the overnight basal. I studied it further and noticed: I fell asleep without doing my bedtime test a lot. The days I was very high in the AM, I had had medium high carb but high fat meals. Hmmm. I added one carb to my dinner I:C and also made my ISF so my corrections had a bit more insulin. I reduced my overnight basals a tad anticipating that had never been the problem. Bang! I woke up at 33! Yikes! More reduction of the basals and I think I'm on the right track. I think I've definitely been off it for awhile!