Well, I was 2 miles from home. I have a straight job that pretty much kills weekdays for long runs so the weekends are "it". At that time, I'd signed up for two 1/2s and felt like I was ready to go farther. But I screwed around that AM, ate some cereal right before I left to "cover" the IOB (with FOB...) and hit the road. The insulin hit first and I ran low but, in addition to the Smarties and sprinting, I figured the food would come on at some point which turned out to be the case.
I've found 120 is a good spot to run at. Not high enough to be damaging but a 40-50 point margin before you're dangerously low, once you get to the point where you know how many carbs to take how often to balance it. I'd guess from the parts of your post where you are having a salad and fries at 195 or the sandwich at 343 that you don't run down to 120 that much but maybe that was just on freakyworkoutday or something. I want my no exercise BG to be flat and then just add enough sugar to fuel the exercise, as if I were a "straight" athlete, not dealing with this garbage but fueling to perform or after lifting w/ protein or whatever other things people like to do.
I have good runs and bad runs but the good runs feel really awesome, like drugs or something. I've run a 23:17 5K, 49 minute (training run but times w/ my Garmin...) 10K and a couple of sub 2 hour 1/2 marathons, all of which paces, I feel like I'm "running" rather than jogging, which I'm doing in a 4:38 marathon. All at 40+ years old, really all in the last couple of years, 44/45. That running buzz is what I'm after and I feel better trying to hit it with decent BG and all of that. Small hits of carbs to keep it flat. For a 5K, I don't worry about it but the longer distances, I bring stuff along. The running group I run with is very adamant that "everyone must bring hydration" and they recommend that you bring some sort of fuel as it pushes out to 14-16-18-20 milers. I don't think there's anybody who doesn't bring anything but there's people who run with interesting fuel solutions in the crowd, one girl had bacon, another guy ran his leg of the Ragnar Race with peanut butter sandwiches in his pockets.
