FWIW, I'll throw in some more "useless" information...
As Sanjay said, the 943 capsules WILL work on the 933 bodies. I talked to Chris at Sound Pros about the differences... obviously, the 943s are the "updated" successor to the 933s. As I understand it, here are the differences between the 943s and the 933s:
- the 943s have a 'groove' on the body, for the mic clip to fit into
- the 943s have the capsules that are the same size as the mic body's diameter (but as mentioned, these will work on 933 bodies)
Chris added that he did not know if the 'electronics' (FET) had been changed in the 943s.