[אלברט ברכה]

it doesn't help the same way simply because the biomechanics of each lift are different, the bar is in a different angle and so on.

however i could see the benefits of not using the belt from time to time, as many strength and even powerlifting gurus advise you to, though for maxing out i don't see any reason to avoid it as long as you perform the lift correctly and through a full range of motion.