He claims to have been blessed with the good fortune of "...growing up in the 60s, being a teenager in the 70s, living my 20s during the big-80s and starting a family in the 90s...I think I benefited from the best that each decade had to offer..." Although his childhood obsession had always been drawing (he was an avid comic book collector and cartoon artist), music was always his primary passion.
That lineup was short-lived however, and both David and drummer John Covington left the band in early 1981 over creative differences in musical direction and style.
"Even at 19 years old, I had already started to get tired of the late night rock 'n roll life style and wanted to just concentrate on making great music.
I always wanted to be in a more radio-friendly, melodic, AOR format and stay away from all the leather and chains..." The decision to leave The Schoolboys was an important one, because it marked the turning point that led to Henzerling's relocation to Los Angeles in 1984 to join the band Keel.
King Kobra was signed by Capitol records in June 1984 and their debut LP Ready to Strike, produced by Spencer Proffer (Quiet Riot), was released in March 1985.
King Kobra released their second album, Thrill of a Lifetime, in March 1986 and followed by touring with Kiss, Iron Maiden, Queensrÿche, and Ted Nugent.
The demo, however, did not result in a record contract and after experiencing the Northridge earthquake on 17 January 1994 along with the concurrent shift in the public's musical taste from glam metal to the Seattle grunge sound, David moved back to Phoenix, AZ with his new wife Kathryn and their young son.
In early 2005, David reunited with his Schoolboys band-mate John Covington to form the band Big C**k with vocalist Robert Mason (Lynch Mob, Warrant).
David continues to compose and produce original projects as well as perform locally with his Arizona-based Classic Rock cover band Trailer Park.