Being a personal interest of mine, I was curious as to whether very many people practiced “Shodo” (as a supplement to their MA). I presume that any kendo or Iaido students would, but I have met very few others who do. I've found the correlation between “open” hand techniques and Shodo “motions” & “strokes” very interesting (much like the sword arts do). There's also the “meditative” aspect to consider.