The Intent of a Pull-Up Workout

"I've been kind of going through the idea in my head is putting together a like an ebook and I actually put this out on Twitter," says Mac. "What's important is not the actual exercises that I'm doing it's the intent and am I achieving that intent?" he adds. 'A lot of times people want a formula and I don't think I'm gonna give out a formula because the formula is gonna be different for different people'