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Title: Interesting but not practical
Review: This book contains very good instructions on how to execute the techniques presented, so from that standpoint, it achieves the goal of being able to pass on the knowledge. But the subject matter is questionable. In most cases, it just doesn't seem practical to get tangled up with someone (potentially in the guard or even the mount) if a) the terrain is rough b) weapons are involved and c) there are multiple opponents. Rolling around on the ground over broken glass, trying to get an armbar on a guy with a knife in his hand and his friends standing around delivering soccer kicks to your head doesn't seem very effective. And any self defense system in which 90% of the techniques can be defeated by sticking your thumb in the other person's eye seems lacking. The sport of BJJ is great fun to watch and play with, but as a complete, battlefield martial art, it is lacking.
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