Good training week - was my last chance to "cram" for Boston. I just finished a 19 mile trail run at Watchung Reservation. Felt just fine. I love my Camelbak and PowerBar Gels. It is so great to finish a long run not dehydrated and craving carbs! I tried out a new Camelbak today. It is the "Blue Wave Vigor ". Seventy ounces of fluid. I had been using my skiing Camelbak "Zoid". The Zoid's tube and pack are insulated, and the bite valve has a heavy rubber cover to prevent freezing. So the tube bounced around a bit too much for running, and I always had to tuck it in under the shoulder strap when not in use. The new one works much better - no tucking necessary - once I figured out that the sternum strap was movable. At first it was set as shipped, which was too low. The strap was bothering my chest and I couldn't get the shoulder strap fit right. After about an hour I took it off to grab a gel, and I realized I could move the strap. It took me a couple minutes, but once I moved it the Camelbak fit perfectly. It also has a better zipper pocket than the Zoid version.