In Judas Priest 's early years , Downing made common use of the wah - wah pedal .
In Judas Priest 's early years , Downing began to limit his use of it in the late ' 70s .
In Judas Priest 's early years , Downing made common use of the wah - wah pedal , but began to limit his use of it in the late ' 70s .