There's another glitch you can do while using the umbrella (not sure if patched). Basically do the spin with the umbrella and equip a mitten, or door charge to the second hot key/item slot. Then while spinning the umbrella double tap that hot key/item slot (mittens,door charge). It will allow you to spin the umbrella in all 4 directions.
This can also be used with light saber and bamboo. And pretty much any weapon that has that attack.

Graal817691