I’m surprised not to hear experienced electrologists mention about sensing/feeling when the probe touches the bottom of the follicle. I’d just presumed this is possible and becomes second nature over time.
Rather instead I hear mention of measuring the length of an anagen hair (with the probe) - and then using this as a guide. And also, that experience teaches how deep a follicle is from the look of the hair. However, both these are a different process to directly sensing the probe pressing against the bottom of the follicle (regardless of the depth of the follicle).
Also, it’s common to see images in instruction manuals showing a probe having (incorrectly) pierced the base of a follicle and extended beyond it. This seems surprising as well, given tissues tend to remarkably strong - in conjunction with several needle manufactures describing their probes as featuring smooth rounded ends/points.
Is it not possible to learn to ‘feel’ through the probe, when it touches the base of the follicle?