There is some common wisdom out there that dry spots under a saddle show pressure points where the sweat glands are too squished to work.
But really how severe would the pressure need to be and wouldn’t it also raise a sore spot?
Thinking about myself, there is no place on my body where tight clothes or belts make me not sweat! Indeed I sweat more when things are tight.
Looking at sweat patterns from contemporary saddles I think the dry spots are always from gaps or bridging whether that’s on the back or behind hollow withers. The saddle simply doesn’t make contact there.
Had anyone ever actually had dry spots from too much pressure? If so how did you know? And was it different in shape or size than dry spots from bridging?