Since i put the grooved discs on i have only done around 150 miles or should i say the missus has,(so no heavy breaking there then). They are new pads and new discs so i know to be gentle for around 200 and even then im a tart and dont give it large too much. like i said ive never had drilled and grooved so these little noises are new and concerning but its reasuring to hear others saying its the norm!
