Smoked: Undercrown Shade Gordo

Smoked at: my patio

New to the group my brothers..a question...I've heard that the bitter flavor of some smokes can be caused by smoking too fast. Is this true? Can one smoke too fast??? I've often cured bitter flavors by "purging" my stick..essentially blowing out through the stick for a second or two, then resuming my smoking...it makes a world of difference.