I was recently listening to an old episode of the 'Managing Violence Podcast' in which the presenter introduced his 'Violence Survival Pyramid'. It inspired me to get my own one down on 'paper' so here it is. The presenter noted that he had gone through several iterations of his own, and I must say like everything in Jujutsu it is subject to change. The 'Managing Violence Podcast' is an excellent listen if you are interested in dealing with violence - check out the relevant episode here.
As a note the recommended length and weight for shinai are: - Women 38 inches 440 grams. - Men 39 inches 510 grams. The Wikipedia shinai page lists the following tables: Regulations In kendo competitions that follow the FIK rules, there are regulated weights and lengths for the use of shinai . Table A. FIK Specifications for competition use of one Shinai (Itto). Specification Gender Junior High School (12–15 yrs) Senior High School (15–18 yrs) University students and Adults (18yrs+) Maximum length Male & female 114cm 117cm 120cm Minimum weight Male 440g 480g 510g Female 400g 420g 440g Minimum diameter of sakigawa Male 25mm 26mm 26mm Female 24mm 25mm 25mm Minimum length of sakigawa Male and Female 50mm 50mm 50mm Shinai are weighed complete with leather fittings, but without tsuba or tsuba-dome . The full length is measured. Maximum diameter of the tsuba is 9cm. Table B. FIK Specifications for competition use of two Shinai (N...