First I want to say, love the MOD it does what an older MOD that I used to use does and I missed having it.
Now to the issue, the old MOD I used also increased the storage size of the input on the ore sorters so they didn't fill up with just 1 load of a truck. Can you set this MOD to do that also?
Trucks are at x5 so 100 capacity but the small sorting plant only holds 360 presorted material so if you are sorting more than one type of ore, Example Iron and coal, the plant fills the sorted ore then keeps around 300 in the presorted area, if Iron is not used for a bit and backs up, then the pre sorted fills with Iron ore and not enough room to dump a load of coal/rock/dirt etc. Hope that all makes sense and hope you are able to adjust the sorter storage also.