Cut advisor and girdle

[elty]

I am looking at the following

Crown Angle: 34.8
Pavilion angle: 40.4
Table: 56.3%

Now, I forget to copy down the total depth, so I only have

crown dept: 14.9%
Pavilion depth: 42.5%
Slightly thick girdle

When I enter the above to the cut advisor, it doesn''t work because "the girdle is too thin". I supposed this is because I don''t have the total depth (I just add up pavilion and crown depth). So, how thick is a "slightly thick" girdle so I can put the math in the advisor?

 

[elty]

Also, on the HCA graph there are 2 area drawn by a dotted line, one of them is the GIA excellent area and the other is AGS ideal area. I notice the GIA excellent area is much larger, and it is also possible to get a low HCA score while sitll rated as excellent. Why is it? Also I was playing with some number and I got a 0.3 HCA score but that sit just outside of AGS/GIA box.

 

[Garry H (Cut Nut)]

Like different religions.
Mainly to do with viewer distance between AGS and me, and GIA used a dopey lighting for their observation studies