Anyone own one of these or know if Vanguard bags are relatively decent? Having just come back from holiday I realised my girlfriend's Lowepro Sling and my shoulder bag (that I added a camera padding insert to) -- are just too big. I have a Fuji XT10 and generally just carry that with an extra lens and memory cards/batteries. The main weight is a bottle of water The Vanguard looks like it'd fit the bill with a nice pocket for a bottle on the outside as well. Any thoughts or alternatives to consider?