Camera bag

Just got this today! Wondering if I should have ordered the Hadley Pro size instead of the small…?  My fuji xpro 1, ipad and 35mm lens, wallet and keys fit comfortably in the small version. There really isn’t much need to carry any more gear than that in a shoulder bag for just everyday around Jozi.  Gets way too heavy and sore for the shoulder. If I need to carry more gear and some personal items, will use my trusty lowepro backpack and for even more gear and pro jobs my Foto File backpack for the whole lot.