I think usually "better" pads with more metallic content (and less brake dust) often are prone to squeel vs "dirty" non-metallic pads. This has been a problem since asbestos has been banned quiet vs clean. All types of pads (and rotors) must meet minimum DOT specs for stopping ability, but there are 'better than spec' brakes, that meet different needs. Yes, proper lubrication can mean a big difference.
