not saying I "enjoyed" their set up, just saying it was upside down christmas tree in the 1x6
for their type of shooting the trajectory is usually flat enough to 200 yd, not to be a big worry in either range estimation or windage hold off.
on 1x between 6 and 20 yds the 3rd horizontal line "corrects" for the high and works great for head shots.
whether the stock is collapsed or short, as in AK 47 , some shooters like to move the gun more center line with the body and extending the left arm further down the barrel use a "pointing" technique much like shooting skeet. this technique helps with movers and aid control, especially if the shooter doesn't have "big shoulders."
some shooters collapse the stocks more to move their scope mount cantilever far enough forward to put their BUIS on and still retain the eye box
but you do what you know is right, that said
All opinions are on a bell curve----- somewhere.
