"Chico Hamilton Special" is the last of the records that Chico made featuring the instrumentation of saxophone, cello, guitar, bass, drums, and it is one of the first with Charles Lloyd. It was preceded by another forgettable album of tunes from Bye Bye Birdie & Irma La Douce, both albums recorded at the same sessions in November, 1960. Chico had recorded with this instrumentation for Warner Bros, although Eric Dolphy was the saxophonist. "Special" was reissued in the 1970's on Columbia Special Products, which was CBS's custom label, not distributed through CBS's regular network, but sold through cutout houses and via special promotions with companies such as Firestone, Goodyear, etc.
I agree that the "chamber jazz" format had gotten old & tired by this time, and so did Chico, I guess, because in the next year he revamped the band, retaining Lloyd, and adding Garnett Brown (tbn), Gabor Szabo (gtr), Albert Stinson (bass). The next record, "Drumfusion", recorded in February, 1962, reflected this new "harder, tougher style" (as Chico called it), and signaled a rebirth for Chico. A series of fine albums with (basically) this band followed:
Passin' Thru (Impulse)
A Different Journey (Reprise)
Man From Two Worlds (Impulse)
These four albums are well worth seeking out.