Beckett BGS Grading Question

[nbatopshot]

I just can't understand how Beckett come up with overall grade so I'd like to hear your thoughts.

Jerry Stackhouse Embossed Refractor is graded at BGS 8.5 and LeBron James Gold Refractor is graded at BGS 8.

But if you look at Subgrades, Lebron James Gold Refractor has higher Subs.

But then how could Jerry Stackhouse Embossed Refractor have higher overall grade??

[MJGOAT23]

http://cardmonopoly.blogspot.com/2015/05/bgs-grading-centering-corners-edges-and.html?m=0

[Ruffy]

grading = ripoff

[nbatopshot]

http://cardmonopoly.blogspot.com/2015/05/bgs-grading-centering-corners-edges-and.html?m=0

Oh god.. It's right there! Thank you.