K.K. Downing (ex-Judas Priest) will release his memoir “Heavy Duty: Days And Nights In Judas Priest” on September 18, via Da Capo Press. The book was co-written by Scottish author/journalist Mark Eglinton. Here’s a synopsis: Judas Priest formed in the industrial city of Birmingham, England, in 1968. With its distinctive twin-guitar sound, studs-and-leather image, and…