Your only the 2nd person I’ve ever seen talk about sheer and other issues that go into blisters forming and not just blame it on friction alone. Always have gotten edge, bottom of toes, and balls of feet blisters. Engo patches so far the best single thing I’ve come across to prevent, tried so many different socks, shoes, insoles, anti chafe and still get them. Mid/ fore footish runner also.
Well well well... I'm a nicotine consumer who just decided to take it up from my regular 5k to 8k on a nice summer day wearing old socks. And here I am watching this video now 😕