Last week I tried Accelerade, which tastes much better than I had thought it would. I tried the orange flavor, and while the flavor is actually pretty intense, it keeps me from chugging the whole bottle in one gulp. As a result of the drink on top of an extra packet of Honey Stingers with me on the run, I ended up finishing totally tired and exhausted but not with any kind of headache, confusion, irritability, lethargy, etc. Turns out 10 miles still wipes you out though so I took a nap later that afternoon. The headache I got later that evening was due to low blood sugar because I was starving and trying not to eat too much.
So far I think I'm on track for the half-marathon. My only concern is being counted as a non-finisher, but I can't let it bog me down. If they don't count me as a finisher, it doesn't mean I didn't actually finish. I just don't get an "official" time. I'm still buying one of those 13.1 stickers for my car LOL!