Just saw your post. I ride a Julianna and almost never use a camelbak, I just don't like the way they feel. I use both bottle holders, the one on the bottom is where I keep the bottle I'm not currently drinking, either the full one or the empty one. When the top one is empty I switch the two and wipe off the one that was on the bottom. Works great for me. I did an endurance event Saturday and was very happy to not carry a camelbak for close to 9 hours. Most of the front of the pack people didn't. I carry my tire changing essentials in an under the seat pack and anything else I need in my shirt pockets.