The Translock presentation links show very well how Double Crown's containers can be stacked four on a rail car. Since there is a shortage of container capacity, I can certainly see where Translock could be a solution to this problem. Thanks for the links.
The engineering that went into developing Double Crown's Translock system is pretty impressive. The presentations on the DDCC website show how versatile this system is and, I agree, the feature of being able to stack four Translocks on a standard rail car is one of the most important. With the shortage of commodity containers in the world, Translock is a very timely technology.