This has nothing to do with packets sent over an ethernet cable between two IP endpoints. I acknowledge it might be an issue with USB cables,spdif etc, but not ethernet. If a signal passes through a switch, any switch, the signal is recreated, its what a switch is for as the standard dictates that the longest length is 100M inc patch leads so needs to be 'repeated' at layer 2. These packets are recreated also because they need to be re-encapsulated with relevant MAC headers as that's how switches manage to work and find paths at layer 2 and reduce the amount of collision domains. I get why people want to improve their kit, no doubt I have biases in things I buy that others might disagree with, but I get really annoyed at people that peddle this stuff, an audiophile switch for goodness sake I've seen it all now. Anyway, if it brings you pleasure good luck to you.