Tanga
Back a while ago, I was going through a year long training in Breathwork. and we were taught to use the pendulum to get guidance such how long to have a person do the different phases...
Really? - how fascinating closerwalking! (my sister-in-law is a Breathwork therapist).
My dowsing skills are patchy - I find that I can dowse clearly if it's about Feng Shui-ing a space (including spirit/other presence). Seems I can manage to be completely detached in this particular function.
For most other things - my head gets in the way (i.e. my expectations, ideas, and doubts about whether it's working etc.).
And I'm best with an L-rod (I've tried them all - including sticky finger sweat response).
It has to be standard sized - that's the sort-of length to your elbow one.
A theory for the dowsing reaction is that it comes form our lizard brain... can't find my notes presently. So - our "primordial" 6th sense - picking up energetic information - or that subconscious "knowing" before all our other learned stuff gets in the way. What birds use to navigate by.
Maybe the same sort of response for kinesiology muscle testing. The wisdom of the body.
@ Libra 289 - might you share what the position labels for your 3-cards-per-option were?