Had the opportunity to glance through the syllabus for the KDS and was interested to see that they do kata with weapons. Not weapons kata but empty hand kata using for example a bo. Now I understood that they did weapons but assumed they would be weapon specific so never thought that they would do the empty had ones with a weapon! For example here is Taikyoku Shodan with a bo. The club that I train with is an offshoot from the KDS so no doubt they will do the same thing or something similar, maybe this is something peculiar to Shotokai? Have you heard of any other styles of karate doing something similar or do they stick to weapon specific kata only?