I couldn't agree more. I think that's actually the U87s you're hearing. They are very neutral, quite sensitive condenser mics - very unforgiving, not "flatter

I couldn't agree more. I think that's actually the U87s you're hearing. They are very neutral, quite sensitive condenser mics - very unforgiving, not "flattering" just "realistic." Dynamic mics like most stations use (SM7, RE20) hide a lot of sibilance by exaggerating the fundamentals.