today was first i was doing everything with the switch-hands rotate forearms around the stick, the tricky what to do with the thumbs, is the thumb covers outer 2 fingers like boken right for jo? have to ask. everything could be done in at least 2 categories: right or left palm up when jo horizontal.
arms set so jo was eye level found & doing the side to side head motion in the frontal plane i noticed that the picture of the jo seemed to have a lag in its reflective density: head tilted one way the top was solid, the bottom see through, head tilted the other way the bottom is solid. noticed a situation in which as i rest in the tilt position the scene changes so that the solid side seemed to solider, the see through zone diminishing over some short period of time. investigation eventually revealed an attention preference one eye over the other. the attention was habitually drawn to the side of the tilt. having found that tendency i could modulate/control it so that keeping the attention alone in 0,0,0 i could eliminate that scene evolution thing so that the side to side transition became equalized, like um a "perfect" sword cut.
and later i discovered that doing shomens and yokomens to the bird feeder pole is just totally excellent. and that manipulating the jo above and behind the edge of the visual field, using the antenna function if you will, is fun if done real slow. today.