Are these those Chinese Lock Jaw? If so, I think I have the same or similar, they ain’t the best but only thing I think they’ve moved with are deadlifts.
As said before though, I rarely use clamps anyway.
Was in a nightclub and an ex came in on the arm of her new fella. She came over to talk and then he followed her. I tried to be pleasant and he asked me what I did for a job. I told him and asked him the same. He replied that I wouldn’t understand what he did but to put it in a way that I would - he hired and fired people like me every day! The ex just said, what a cvnt, to him. I saw red and dragged him towards the exit. He pleaded with the bouncer on the door but unfortunately for him, that guy just happened to be my training partner! I took him outside and absolutely laid into him. Bouncer mate came out after a bit and told me he’d had enough. Went back inside to get my jacket, said to the ex “you coming” and went and had a great night with her. Bouncer told me next day he’d rewound the CCTV tape (VHS back then) and then it would have got taped over. Great mate to have.