I would suggest discussing this with someone who has actually studied physical acoustics and microphone design before modifying a microphone in the way you're describing. The effects could be quite different from what you might suppose.
I recently saw one microphone in which the removal of what someone apparently thought was an "obstacle to transparency" actually caused the microphone's high frequency response to decrease. In another case, a manufacturer's deliberate simplification and opening up of a capsule's grille design had most of its effect on that microphone's low-frequency response, with only a small effect on its high-frequency response. There are clear enough explanations for both of these outcomes in physics, but if you don't know the relevant physics, you're spitting in the wind.
As someone who has spat in that wind myself, let me also say that a few years back I had a pair of AKG microphones modified, and as part of the service the gentleman removed one layer of their multi-layer mesh grilles. This made the microphones extremely vulnerable to radio frequency interference from then on. I'm glad that I no longer own them, but when I sold them of course ethically I had to explain everything, and that made their resale value less.
Again, if you don't know all about the design in the first place, and don't have (or don't use) the test equipment to check what the heck the consequences are of what you're doing, the odds are strong that you will only make the microphone(s) worse. This is not a field for amateurs, unless it's people who are looking to sacrifice their microphones in order to learn what not to do.
--best regards