Soeno Yoshiji said to me a day, long time ago (about the SHIDOKAN), that only the valuable things are copied and\or imitated... So "Louis Vuitton" or "Christian Dior'' trade marks, and it's true... It's the same for IBK.
But there is only ONE and SINGLE Kyokushin-Budokai, that one of Kaicho Jon Bluming!
Lionel Bricnet, Shihan