Hi all. I am going to note my agreement with the suggestion to fix hauling.
I think that it might be best to just turn off hauling with barrels and bins (while still allowing barrels and bins in stockpiles to reduce space) until a fix can be made. I'm not sure if that would really be easy to do, though (just an idea).
In current versions of DF, the weight of the barrel slows down the dwarf carrying it by a lot if it is heavy. In my current fortress, I recently made several helms for my troops out of precious, rare zombinite. On receiving the new uniform assignment, the squad members dropped the headgear from their old uniform and went for the barrel where the helms are. When the first one got there, they grabbed the barrel, and the other dwarves stopped trying to collect their helms because the bin with the helms is taken. The dwarf that grabbed the barrel will very slowly (because the bin is full of heavy, heavy armor) make its way to where their old headgear was to put it in the bin and then will very slowly return the bin. After this is complete, the process repeats until every squad member has geared up. I stopped using bins for my weapons stockpile, and I'm making space to do the same for armor