I guess it depends what you are looking for. There isn't a lot of 'combat' being done today with swords, but if I recall, kumdo (Korean take on Japanese kendo) does have competitions with armor and such to allow for full contact practice. I recall reading some concerns over some of the Haedong Kumdo groups, so I would look into any group before joining up. I would say that if you are looking for some martial arts exercise that includes full contact application of sword skills, it may not be a bad choice. If you are looking for practical self defense, there may be better offerings.