I wish the Dev's would show strong boxes on characters and don't let them fight with them equipped.lets get 'real' (as much as you can get in a fantasy game) even in the wildest fantasy novels whoever heard about the hero hauling 6 big heavy strongboxes, wielding the weapon and shield at the same time and fight some heroic bad guy? I personally believe that running around adventuring and / or harvesting using strong boxes is odd. This way if you do harvesting and adventuring you don't run out of str.
“ Just make sure you can carry whatever you are using otherwise you may end up crawling :=)) anyway as most of the large bags you get from quests do not have weight reduction and if you are a mage or other 'low strength' character it would be better to equip with the largest master crafted bags and swap them out as needed for the larger harvesting bag.