I use Planos 3701 boxes. Those are the thin Version of the 3700. I then have a Shimano bag that came with the wider 3700 boxs. With the thin version boxes you can fit more crankbaits in the same size bag and still keep them somewhat separate. I will still put some small cranks of the same color together. I have two of these shimano bags. I normally have small cranks in one and large cranks in the other. With the boxes I can switch some stuff to one bag if I do not want to take both along.