What is the fastest AND most effective way to dispense the cubes out of the loading?

Cause right now I’m going conveyor zip tie kind of thing to get them out, but the loading dock jams easily.

try widening your tracks that hold your zipties

unload at a slight downward angle to reduce jamming, and yes, widen the gap between the tread so the cubes don’t fall on top of the tread itself.

To answer the original question, it all depends on design and driver strategery.