my moms horse when the vet came and had to come cut some proud flesh off her foot, he gave her some ace, and she still wouldn't hold still (despite having to be held up by several people because she was drugged) he then twitched her so he could cut it and she STILL fought against it. So we got out a stud chain and put it under her upper lip and shen then stood still with 0 fight. All in al I find the twitch a bit cruel if used to harshly like i've seen it but I definitely use the lip grab when needed! But I find the stud chain a bit more effective (in my moms horses who is the only one who ever needed a twitch) than the twitch but for every horse different methods will be needed.
Baby, Sparta, Carmen, Henry, Hooch, Mercedes, Butterscotch