Buried from the Ground Up
It's just containers! NO IT'S NOT.
Work step by step to train the unique skills necessary for success in the element that kicks more ass than any other.
The buried element is easily the hardest element in AKC Scent Work. Not only is the Q rate much lower than other elements, it's not rare to see a zero dog Q rate at the upper levels.
Take your dog back to the beginning, and build the foundation skills that will help your dog succeed where so many fail.