You’re not more “functional” for avoiding machines. You’re just...

Isolation doesn’t mean irrelevant. Fixed paths don’t mean ineffective.
Machines offer control, consistency, and a low-fatigue way to target tissue, especially when you’re managing joint stress,
Watch any elite sprinter or footballer train. You’ll see machines. Again, that’s not the reason they are helpful, nor should it be the bulk of your program, but they can play a role!
My new speed ebook is almost done. It’s the longest and most detailed one I’ve written yet. In the meantime, all current speed programs are on sale.
fredduncantraining.com