capsule question

[Gus]

Looking at http://recordinghacks.com/microphones/MXL/2003A
The picture shows a different drilling in the back plate at the rear side of the capsule
Has anyone experimented with this capsule with a different circuit?
Looks like they are all through holes none appear to align with the front through holes
I wonder if the spacer is thicker or thinner that sets part of the time delay?

 

[ln76d]

Since the front holes are 100% covered from the back, there shouldn't be any difference than with other k67 types, when the rear half of capsule is "dead". Spacer shim had to be thick to make any difference. Even half opened backplates (without diaphragm) like in rode capsules doesn't make much difference.
I wonder what would be difference in k67, setting up the holes pattern to make clearance between both backplates, for few holes only. In one way there's really nice looking pattern
Someday i will try that out of curiosity.