The meaning of Kakuyoku: As I’m sure you are aware, the name Kakuyoku means 'Cranes Wings' referring to the numerous wing-like trapping and hooking defenses, found in all three kata. However, less commonly known is the origin of this name. Asai Sensei explained that ‘The Kakuyoku’ was actually a Samurai battlefield strategy. The tactic effectively aimed to envelope one's opponent(s) then finish them. This makes complete sense technically, when doing oyo-kumite (the kumite applications) with these kata, in particular, when employing shuto kake uke, tekubi-kake uke and tsukami-uke. Hooking, grasping, and/or trapping, then impacting.
This was an great final training for the December 2009 kangeiko. Whilst (thankfully) being less physical than the previous three days, I found it to be technically more challenging. All the best from Oita, Japan.