Hi i do ckm in belfast and have to say my instructor is a long standing martial artist, as most guys are who find themselves looking for a reality based art, so i guess my point is anything that helps you when the s"*t hits the fan has got to be good but 6 months of one thing and 5 months of the other aint really gonna help on 2 counts, first one you cant really judge a fighting art on this time scale and unless your B.Lee you aint gonna learn much either.