Hi, I've been having a look at Tozando/Bokken Shop just to check out the different items out there and compile a wish list of things I want to get and I'm unclear on the difference between a standard bokken and a deluxe bokken. The only thing I've can see clearly is the deluxe version has a "chevroned" spine as opposed to the flat spine on the standard bokken. Does this make a difference for use in class (as a non koryu practitioner who is still learning proper grip etc). Are there any other major differences that would lead you to recommend one over the other (apart from the price). Also, what are your thoughts on this saya? http://www.tozandoshop.com/Plastic_Saya_p/002-wps.htm Just to practice drawing & noto without going to a iaito/mogito yet. Thanks!