Which freestyle moments helped build Funkmaster Flex’s reputation?

A lot of his early buzz came from those late-night freestyle sessions on Hot 97 where he’d let underground rappers just go off without a beat, just acapella. That raw, unpredictable energy was totally different from the polished radio stuff, and it made him the guy who could break unknown talent. The way he’d cut the track and let the MC breathe, then jump in with that signature "yeah, yeah, yeah" hype-it turned those moments into must-hear events that people recorded on cassette tapes and passed around.