This period includes at least 12 months of training, which is viewed as an exam. The students learn to see errors, to find them analytically... But also to distinguish what is essential from what is not. After training, the trainers are able to recognize and correct the smallest mistakes, even in large groups, within seconds. Today, after over 40 years of experience, this knowledge increases and enables students to be trained faster and better. Boekhoff trains and teaches the human subconscious. “Everything else takes too long,” he explains briefly. "The essence and most important part of Ving Tsun is explained in the first hours of training and not in the last 5 minutes after several years....."