i just had my breaks done (only because I plan towing a boat). From day one (and I am original owner and VX was brand new) My rotors were all groovy and rusty. Some other forum members had similar stuff going on. Rears were in worse condition then fronts. They never made any noise and breaking performance was OK (nopt the best but OK). I figured that pads are not wearing out correctly as inner and outer edges were hitting rust area on rotors and trust me there was lotsa of that. Front rotors were re-surfaced but rears I was told to change. I did not have any time to wait for slotter rotors to arrive so I bought some aftermarket $36 a piece brand new rears (they work flawlesly now). Old pads (I still have them in the basement) had about 60% left on them - they were just all groovy (peaks and valleys) and had uneven wear. I bought brand new OEM pads from Isuzu and DO NOT regret a second. They are very good performers and last. I guess I have to wait for about 200 miles to see full benefit of new breaks but I feel the difference now with increased stopping power and even, smooth breaking.