Khal,
Just bought the script. For when it works, it is way more efficient than Perfect's script; however, that's when it works. When the sack is full of ore, the script tries to add more pay dirt to the hopper. This initiates a prompt stating that the sack is full and needs to be emptied. When this occurs, the script tries to go and get it's ore from the sack, with an inventory full of paydirt (which won't work).