My sensei is a California board certified acupuncturist (one of the hardest acu. boards to pass in the country), and a doctor of oriental medicine. He has showed us some pretty amazing stuff with pressure points. He has also said they are way too unpredictable to rely on. Do the technique correctly and you won't need 'em. When I've asked him about Dillman he says "He seems to have a good reputation", then he drops it which tells me to drop it.