Run&Gun
Veteran
I once took an AC'ing job and it happened to be on 24-105mm lens and 5D. Yes, I'm an old school guy and back in my AC'ing days I pulled focus with a tape and scale. I don't consider pulling focus by the monitor a real substitution. To pull focus traditionally, it is a horrifically frustrating task to do on 24-105mm lens, even if you put scales and marks on the lens, they are gone as soon as you change the focal length even by an unnoticeable amount. Focus pulling by the monitor / yourself is not always a desirable method. Long story short: just because of the proper scale which does not drift once you change the focal length, the Fujinon leaves the 24-105mm photo lens in a dust, or rather - it leaves it in photographer's bag. Ask your AC and he'll throw the 24-105mm into the ocean with passion.
I've seen several people bring up pulling focus by monitor in the last few days. I was talking to an A-list operator a few months ago at a Steadicam workshop and he said you can't. By the time you see any change on the monitor, it's too late, you've blown the shot. He said the good guys still pull by marks, tape, eye, cine-tape.