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.
This week Thibs presents a "Survivor" inspired workout where you do four basic strength-exercises in a circuit. As soon as you reach failure on a particular movement, it gets "voted off the island."