A trainer that I worked for fed cubes, they came once a month in a semi truck/trailer with a shaker floor to unload them in a barn made to house them. Never had a problem with them. They were a good quality cube. I have fed them to my horses, the only issue I had with with the bagged cubes that came from TSC was I had to really inspect them for baling twine that was pressed into the cube. I got tired of that and bought Standlee brand, they were of higher quality. No issues, I don't soak them or break them up.
I DON'T LEAD 'EM AND FEED 'EM, I RIDE 'EM AND SLIDE 'EM.