From a discussion maybe a year ago, I recall him saying he gave up on Korzybski, but read Hayakawa, though I don't remember him characterizing how much he considered himself influenced by Hayakawa.

It's been over a decade now, but my recollection is that Hayakawa was predominantly focused on language, and left out much of the most interesting and illuminating stuff. Basically, he's tagged in my head as "popularizer, relative lightweight" in relation to Korzybski.