close miking

[Edward Bridge]

fast question: in close miking a classical guitars (noise block) , it's it
better to use small diaphragm or large diaphragm or is it either I dammed?
I have 2 cad 100's and AT4040 and Sony Stereo Mic. but I don't have small
diaphragm ( none to borrow)

thinking of a pair of CM 700's

Thank you
Ed