I have to start by saying that Symantec does not endorse or approve any third party product for this purpose.
Now that the disclaimer is out of the way, if all you are after is basically resetting the drive without retaining any of the data, I would agree with Alex_CST. I have used DBAN successfully on several systems.
Repartitioning also works the majority of the time, but there are those cases where it will repartition, and the Bootguard will stick around. If you already have a linux live USB/CD sitting around, it is pretty quick to do.
In the end, I prefer finding a way that doesn't involve removing/slaving the drive if at all possible, so my preference would probably be DBAN for this type of situation.