YouTube: Jeffrey B Wolf
UB's resets are definitely worthwhile to use, especially after low damage starters like a raw Ice Ball or 11~Ice Ball. You don't need to use EX Aura for them though. Plus, if you do use EX Aura when not in the corner, then you'd need to two bars stocked to go for the B33 follow up or to get solid damage off of a B2. Don't get me wrong, online, if you need the reset to clutch out a round and you have the bar, go for the EX to guarantee that the B12s connect.