I would keep the hard pads. Better bite than OEM Perodua pads. I'm currently using Perodua pads and they are horrible. Soft, not much bite and the amount of brake dust is crazy. My front wheels are black from the brake dust. If the brake pads eats or scratches the rotors just replace them when they get really bad. Myvi rotors are very cheap. They are around RM 120 for one pair. Plenty of aftermarket brands making rotors for Myvi.