After a month of trial-and-error, I had one of my best BG days in memory. Here it is. Yay! Note the 1 U/hr basal rate in the morning compared with 0.25 U/hr in the afternoon. It took a month off the pump for me to accept that I really needed this much insulin in the morning. I'll have a chance to put this plan to the real test this weekend with a 120-mile ride and 19-mile run. Then begins the 3-week taper before Ironman Coeur d'Alene.
I am using the basal rates as shown below, with a 1U:40mg/dL correction factor for high blood glucose, 1U:9g carb ratio for bolusing, and 4-hour insulin-on-board time window on the pump. Previously, I was using 1:85 correction factor, 1U:10-15g carb ratio, and 2.5-hour IOB time window, so this is quite a change. I am trying to really test out these parameters by careful programming of my boluses and so far, so good. And I expect to make adjustments as I try this out longer. I try not to expect perfection, but isn't that a nice string of 80-120's there at the end of the day?
Thank you, Matt Corcoran (of Diabetes Training Camp), for working with me to figure this out.