Would it be feasible to add an 'almost' balanced mode; the distinction being that if there's in total an odd number of items between the internal and external chests, the odd item is moved either to the inside or outside chest. The reason is that if only one item remains, it will be moved to whichever side of the wall it would be more useful on. This is especially useful for the pallets/boxes/etc. mods which take anywhere up to an entire stack of items, and combine it into a single item, where it is entirely reasonable to request just the one item.