The CUBE essentially a compressed form of BB2 offers more protein and less salt than any other consumption block. It's designed to last longer in the field and is perfectly suited for:
Hard-to-reach spots - if your stand is too remote to replenish with BB2 regularly the CUBE is the perfect answer. Like BB2 it will attract deer from far and wide while providing the nutrients and protein that deer desire.
Hunting mature bucks - minimizing activity is crucial when hunting mature whitetail bucks. Because the CUBE lasts longer it will help you limit the amount of movement in the area yet makes sure the buck has a reason to keep coming back.
Long-distance hunting - some of us don't live where we hunt so we can't check our BB2 sites like those who do. The CUBE is perfect for this situation since it ensures your deer always have a reason to return.