All right not to give AZ JazzyJ's poor wife more to do I have tried the pack out and found it to be great on my shoulders. As said before I have issues with my neck and shoulder. Sometimes even wearing a necklace can set it off as too much weight.
I decided to try out my new bag at our local county fair yesterday. I loaded the bottom up with my Cannon A520 (not the S2IS because I have not told my DH that I bought a new toy yet.

)That will wait until my birthday actually gets here next month.
So back to the review. The bottom has my A520,could have fit much more in the bottom. Top has wallet, glasses case, Treo phone, brush, small sunscreeen and lipstick. That pretty much filled the top up. Front pocket had 2 sets extra batteries. A water bottle on each side pocket. So it was filled if not completely up to touring WDW capacity it was close.
What I liked: the bottom strap across my tummy while not attractive took so much weight off my shoulders that I willingly looked dorky. Like that I had good size water bottle pockets, liked ease to get to stuff inside top pocket. Good cushion for the camera.
What I did not like: !.It is a mission to get camera out. Have to unlock front clip then unzipp, tip top back and pull it out. Definitely not for those shots you dont want to miss unless you have a good minute to get the camera out and get organized. I ended up putting the camera around my neck (defeats purpose of saving shoulder) or just lying it in the top pocket portion. It went back in bottom section at the end of the day.
2. as I stated earlier the top pocket does not fit much. I am always picking up stuff here and there and I had no place to put it. Had to get a separate plastic shoopping bag to cary it around. It will definitely force me to streamline what I bring into the parks and what I purchase (unless I send it to the room

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Most important thing is that I had 1 twinge from my shoulder and that was it (probably from the time I had the camera around my neck) for the entire day. In my book that outweighs all the bad and I will absolutely use this pack.