The really good wind judgers at the 1000 yd matches (where they have flags), have determined that the best way to judge it, is to get all 10 shots off in less than a minit.
DUHH i wonder why? lol
I'll call the expert wind reading claims, especially in mountainous terrain, for exactly what they are, B/S.
Take it to the bank that even they don't actually believe that (repeat), B/S.
As for experience/ shooting ability consider this, a very high percentage of the many L/R deer taken at our camp over many years, have been by young kids or adults with very little experience.
Fact is simply this, if it were as hard as some project it to be, very few of us could actually do it even at the distances the vast majority of all animals are taken.
Opinions are one thing, but the argument over lighter bullets vs heavier bullets for L/R hunting, only exists today because there are many who are still uninformed as to having actual real time experience using them, and watching them being used. And the further away the target, the more obvious the differences become.
And that fact has nothing to do with any opinions.