Set up on free throws....

[barknoll]

In watching Div I girls--I see the def. team completly leave the lowest box open & set up in the 2nd slot up, with the off. team in the 3rd
In watching Duke vrs. MD game Thurs nite I see them being able to use the entire low box--including all the way thru the solid 12" box thus being able to get a better angle on the off. player
Are the rules diff for high school? Being able to get a better angle on the off. player in the 2nd slot is a big advantage thanks for any input.....