Board Thread:Off Topic/@comment-26397825-20160715033136/@comment-25936766-20160917010538

That only makes it worse. Remember, as I'm pretty sure Phantom himself as remarked before: The average sniper rifle has enough recoil to even knock down a strong, healthy adult.

Which means, Ruby herself would be far less capable of sustaining the recoil. While it does justify how she can use it to dash around the field, it also makes it less logical for her to easily dismiss the damage she's dealing to her own Aura.