Nope. It's about the frequency response range of the element, the cardioide pattern of the element and the microphone.
But more importantly it's about how high you have the mic gain up on the radio than the mic used. The vast majority are just way too high. On my ham gear I rarely have mic gain above 30%. I've received great audio and people asking me what mic I'm using on my President McKinley and they're shocked when I tell them it's the stock mic. I just wind it down 2 bars from max on the mic gain setting. Basically once you've increased mic gain so that on SSB you're getting the maximum power out of the radio anything more than that is just going to introduce distortion and make you hard to understand. It won't actually make you louder. What people say is loudness on received audio is actually distortion.
The other day I was listening to an Italian station trying to call DX. Even though he was 20 over to me I couldn't make out his callsign because all it was was overdriven, over-compressed rubbish and of course he was compounding it by shouting louder when the DX station said he couldn't understand him.
Get a proper peak hold power meter, turn the mic gain down to zero. Key up, start talking, increase the mic gain. When the power meter stops going up that's the point where your mic gain needs to be set.
