Whitetail deer tend not to run off a hillside following a shot unless they have been hit. In fact it's not uncommon to see them sniff the ground where the shot hit.
Sometimes we pick out a nearby target to send one at first. Otherwise we just go for it and correct as necessary. In other words, we rely on real time sighter information. Thats not to say we ignore the obvious signs, but then not all signs are clearly visable, and fact is there really aren't any experts.
Today isn't yesterday, and 2 minits from now isn't now.
Some of the worlds best shooters can be found at the 1000 yd benchrest matches.
If you go there and watch you will find that the best of them have perfected having all 10 shots in the air at almost the same time.
10 record shots in under one minit is pretty common.
That should at least give a clue as to the expert wind reading claims.
And by the way, while your there look for a wind meter.
Most important is that at least in PA, virtually all serious long range hunting is done using spotters sitting behind very good optics.
Fact is everybody I know does the same, and they always have for longer than ive been around.
Ive personally never held a wind meter in my hand, and would consider them pretty much useless for where/how we hunt due to the type terrain.
When hunting in that type terrain, you shoot when the opportunity for a clear shot presents itself, and not when you think you have all the right data.
In other words you could "think" you finally have the data, but now there is no shot.
Maybe it will stop walking again in another good open spot between the trees, and then maybe it wont, but by then will we need new data?
Send lead, and if that fails send more, and leave the games for the gamers.