Each position has a series of events, it goes something like this:
Is there a shot, turnover or foul?
If a shot, who shoots?
Then what type of shot is it?
There are three types of shots: shots in the paint, mid range jumpers, or three pointers.
________________________________________________________________________________
Above this line is what I believe is fact, below is what I think happens...
This is where Low Post comes in.
The higher the LP/PER ratio the more likely it's a shot in the paint which uses LP and ATH.
I am not sure of the mid range jumper formula but I suspect it uses LP and PER (and the secondary scoring attributes) in some way. I think that's why post players with higher speed/perimeter/ball handling are better scorers.