*Warning: trivial and specific training related question*
Given the complete lack of a decent wall in my locality (and lack of funds/time to build a woodie) I've started taking fingerboarding a bit more seriously. I've recently switched from repeaters to max hangs and, since my edges are homemade, I started wondering about what constitutes a 20 mm edge. At the mo I have ~25 mm and ~14 mm that I'm hanging from, but the exact depth depends on whether you measure across the flat area of the edge, or the entire width including any rounding.
So is there a convention? Do you even care? Etc.