It is really true

that no progress is possible without Suburi training and the keen student should set himself a target of 500 or 1.000 cuts per days if conditions allow.

It will be noted that in the final action the right shoulder swings a little forward since the right hand is advanced on the hilt, but the hips remain square. This swinging forward should not be exaggerated and the student will find it occurs naturally if he concentrates rather on keeping the shoulders square but letting the shoulder come forward a little if this feels awkward. The student will almost certainly find his hands blister until a tough hardened palm develops. Callouses along the forefinger show that the technique is incorrect, the areas of callous as shown in diagram 12 give a good guide to correctness of technique. The right hand is hardly affected.