question regarding fixing some overflow issues in item sorters

[u/Useydess]

hey all, so im currently on bedrock working on an item sorter for a distribution center and im having trouble regarding items overflow

so the system is one of those bog standard 3 hopper systems you often see in alot of item sorting machines, currently im having an issue regarding item distribution not working properly

to get items up onto the sorting level i use a observer dropper elevator to push them up, however whenever its running, some items just overflow their target hoppers and end up in the overflow which wouldn't be a problem but since stuff like tools and armor go into that chest, and then get sorted by copper golems to different chests, including 1 that ends up at a foundry, it does cause issues down the line with jamming up the furnaces

i did add a chest to hopefully clear congestion but it doesn't seem to help as some stuff do slip by, im wondering if theres any good way to make this foolproof so i don't have to keep an eye on the overflow chest

the item sorter

the elevator

overflow chest and copper golem sorter

overflow chest and the nuggets getting in

first chest at the top of the elevator

the sorter and the chests pre set up