Fingers spread or together?
I've been thinking about this for a long time, but I have not found it discussed anywhere online. In some styles and/or dojos Aikidoka (uke and Nage) practice with fingers spread wide apart. I once heard this explained as holding your hands "kokyu". To me this is a disaster waiting to happen. There is a high probability in a fight of getting a lone finger caught in clothing or something and getting it broken. The fighting arts I have had exposure to emphasize keeping fingers together as much as possible for this very reason. In addition, when I rock climb, I have much more finger strength with my fingers together where they can support each other than when they are spread, which would seem to support the fingers together mode in an art with so much grabbing.
So my question is this, why do so many Aikidoka specifically emphasize spread fingers?