Eastern custom

Ok, most of the Eastern weapons are pretty ass, so if they ever come up, remind me to check their usability. Katanas and Wakizashi are Eastern - Martial, not Eastern - Exotic, etc.
[b][u]Double walking stick katana(Supersedes PFRD version)[/u][/b]
[b]Category[/b] [s]Eastern[/s] Southern - Exotic
[b]Damage[/b] 1d8/1d8 S/P or 1d6/1d6 B(quarterstaff form)
[b]Critical[/b] 18-20/x2 or /x2(quarterstaff form)
[b]Cost[/b] 50gp [b]Weight[/b] 5lbs
[b]Special[/b] Double
[i]This single case conceals a pair of matched fighting swords perfectly balanced to be wielded as a pair. Despite their name, the blades more closely resemble the shorter wakizashi.[/i]
[b]Benefit:[/b] When the blades are concealed in their case, this weapon can be used as a quarterstaff.

[b][u]Dai-Nodachi[/u][/b]
[b]Category[/b] [s]Eastern[/s] Southern - Exotic
[b]Damage[/b] 2d4 S
[b]Critical[/b] 18-20/x2
[b]Cost[/b] 100gp [b]Weight[/b] 10lbs
[b]Special[/b] Reach, Brace
[i]This very long two-handed weapon has a slender but wickedly sharp 5-foot-long katana blade at one end, mounted on a three foot long handle. It is designed specifically to battle oversized beasts and cavalry, where the added reach and power are invaluable.[/i]

Shifting weapon(Base - Double walking stick katana. Alternates: Kukri, Dai-Nodachi)