Jim Jeffries fought out of a crouch....but it’s a pretty archaic antiquated style for the most part
Expertboxing has clearly leant the proper science of boxing, he might be off with a couple of things sometimes, but you can see he has learned professionally, he`s not just guessing is he?
I tried boxing when I was 13 but the kids there were too tough and gloves were old and shitty. I beat the crap out of one of the kids but the trainer weren`t happy and said I should be just jabbing because it`s just sparring, it was a crap gym.