The Sifu is the absolute best production fighting folder made today, in my opinion. The fingergrooves fit me just fine.
It's really for the California market. Our gun permit system is a hideous joke, and we can open-carry fixed-blades but local restrictions abound. The main "bright spot" in our weapons laws is the ability to carry (concealed OR open) any size non-switchblade folder. If it's concealed, it has to be folded while concealed. Balisongs are banned, but thumbstuds/holes/disks are specifically LEGAL.
In deference to Texas's 5.5" blade length limit, the Sifu comes in at 5.45". It's far higher in quality than the Cold Steel Vaquero Grande, the previous "California Special Anti-Mugger Monstrosity" king.
Camillus is threatening to "top" the Sifu, possibly in the blade length department. 7" has been kicked around. They're delayed by the patent process on a new lock; REKAT was fortunate enough to have a lockwork laying around that can support a megafolder without problems.
Come on, Camillus, join the party!
Jim March
(Owner of Sifu serial number ONE for coining the term "megafolder" and pushing for a "California Screamin'" special.)
For info on the California gun carry law fiasco:
http://www.ninehundred.com/~equalccw