I personally think some systems work better then others, you have to judge for yourself what works best for you. Most schools offer free classes in there system, shop around and ask alot of questions. I think that is one of the key elements, as for relying on luck, don't.-ED

I just brought a set of SCARS videos and they appear rather unrealistic in both methods and style. I can not believe that everyone reacts the same way when hit, this is what I believe makes this system flawed. Maybe I'm looking at this from a basis point of view since I study both JFJKD and Muay ...