Resonating Shield animation cancel to attack faster

If you are holding down Resonating Shield and then press Raise Shield at the correct timing (seems like about when the weapon hits the shield), the Resonating Shield animation is restarted from the beginning. Once you have the timing down it is pretty consistent to attack seemingly 2x faster than intended.

Shield Charge also triggers this behavior. With Magma Shield, hold Resonating Shield and tap Shield Charge with the same timing. Resonating Shield attacks faster and Shield Charge is never used.

Strangely, doing this tech also consumes less mana than just holding Resonating Shield.