A small note on flattening the blade on the body. Note if you are taking a step to avoid harm you may be placing all your mass on the other leg and actually pivoting rather than walking. Pay attention to the other leg and let it relax under you so your body remains relaxed, you remain alive and you can actually move rather than pivot.
Work on multi-directional stabs such as upwards and in so your tension is brought to the surface.
Sharon Friedman - Vigilance and Tranquility 
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