My brother Dave and I did a 19 mile run this past Saturday. We ran the Bar M Loop and then down the old highway past arches and down into Moab. We were beat! Last week it was about 45-50 degrees for my 17 miler. This week it was about 75-80 degrees in town. We've been using e-Gels for about 2 weeks now. They are an electrolyte gel with about 50 more calories per pack than a Gu. The plus side is I can just drink water instead of sugary Gatorade. I broke out the new shorts on this run. My first "track short" with high split sides. I LOVED them! I'm never looking back.