Quote Originally Posted by ferroburak View Post
Ok let me put a crude classification here:

Hollowness:
full wedge:A
1/4 hollow:B
1/2 hollow:C
full hollow: D

blade width:
15 mm(or 5/8) = a
18 mm (or 6/8)= b
20 mm (or 7/8) =c
25 mm (8/8) = d

So what edge width should a "A-b" razor have? What about others?

I think this is quite impossible to set figures to.
The reason I feel that way is that you are missing a key element here, and that is spine width. Geometrically that will be one of the determening factors.
As an excample I have different razors in the same width and grind with very different bevel widths due to varying spine widths.