how should we do shomen uchi using bokken? should we open our elbows like in this video of Morihiro Saito Sensei http://www.youtube.com/watch?v=3Y1iXm89jI0
or should we form a triangle with our elbows and body so that the elbows are closer to each other and not to bend our elbows?
I know that different Sensei can have different bokken kata.. but shouldn't the basic stays the same?
some people teaches the latter part which makes me wonder why it is different from the one being taught by Saito Sensei and all other references I found for that matter..