[3] After his departure from The Lewd, Vanderhoof formed Metal Church, whose name was inspired by a nickname given to his San Francisco apartment.

In the summer of 1982, he formed Shrapnel, a heavy metal cover band[4] consisting of Tom Weber on drums, Duke Erickson on bass (both from Hoquiam), vocalist Mike Murphey, ("Muff", from Montesano) and a guitar player Vanderhoof knew from Aberdeen High School.

The other guitar player quit after a religious experience that led to unwillingness to cover The Number of The Beast by Iron Maiden.

Vanderhoof reformed Hall Aflame in 2023 with original bassist, Brian Smith, adding vocalist Scott Nutter and drummer Bill Raymond.

In August 2024, Kurdt signed on to compose his first score for filmmaker Billy Henrickle’s feature documentary on the life and career of BMX legend and Hollywood stuntman Eddie Fiola.