You can do this protocol using a neutral, wide, or underhand grip. I like to use a different grip each time to create a different stimulus. The isometric is performed at the bottom position because this is the point of the ROM where most people cheat.
If you've been reading Testosterone for any length of time, you've figured out that each article is just another piece of the weightlifting puzzle. This one's about a big piece of the puzzle, one that's often neglected: the brain.