Aris over at Avoiding the Puddle discovered a new piece of tech in Soul Calibur V on day -2. By holding guard and tapping up (instead of holding up) your character will begin his jump animation but will not actually leave the ground. During that entire time your character is in a guard state and will block any moves that come in contact with him. However, if your opponent throws any low move (normal or special) the game will detect it and force your character to jump, successfully avoiding the low attack. This makes many mix-ups in the game easily avoidable, as long as you can get the tapping down.

Many of you may remember a similar glitch in the arcade version of Soul Calibur II that was eventually patched out of the game. Will Namco-Bandai patch it out of Soul Calibur V as well?

(NSFW Due to language)

Source: Avoiding the Puddle