So.... I have an 11 year old cousin who got interested in kendo because of me. He likes the akatsuki bamboo shinai, but is wondering what size he should get. This question has already been asked, but not for this certain age. He is turning twelve in May. What size, I was debating 34, 36, 37. Where can I find akatsuki shinai with certain heights? E-bogu has them, but they don't say what sizes.