It's worth looking at the basic differences of the models:
Condenser microphones are more sensitive and transmit sound cleaner, bringing the sound quality closer to the studio.
MD-305, not so sensitive, but more resistant to ambient noise, and thanks to the frequency response optimized for vocals, it does not require equalization.
The frequency response of the MK-207 is uniform, which allows you to expand the scope of its application as a universal, instrumental microphone, but in order to turn around "to the full" it will need additional equalization.