I replaced the rear pads with EBC HH, and was told they need to break in for a while,,,They squeeled like a pig for 2 months,,,,,So the replacements That Im putting on the front are just EBC replacements ,with out HH,,,,,,I dont do alot of hard braking,,its just annoying to hear them sqeel,,,I was told by a another tech,,thy would do that for a while,,,and that the EBC sinistered w/o HH would be fine and no squeeling.........I;ll see after the install,,,,,,,,,,,,,,BTW,,,,,nice bikes fellas......