Front Brake Pads
As for rotor wear, if you're more concerned about how long your rotors last than you are about how well your car stops then your priorities are thoroughly screwed up.
I am a streeter;my top speed is 100kph/62mph. I will never get a speeding ticket, because up here the law is very harsh on speeders. In fact, on the hiway, you will find me poking along at 50/55, not only because of the cops, but because I like poking along. It only adds a couple of minutes to my 15/20 minute trips. And the dual 3" tailpipes are singing a happy song in overdrive, at 55=1900rpm.
In 1999 when I installed my KH system there were no new rotors available; And I only had one spare set; so yes, long rotor life was a priority.
At that time, my 367 engine had 11.3 compression,measured cylinder pressure over 185psi, and a 4 speed; so when the throttle slammed shut at rpm; well, my wife will no longer ride along with me, one or two times was one time too many. And yes I was trying really hard to show her a good time.
Because of this combination;my front brakes are pretty much along for a free ride, as witnessed by having 125,000 miles on my front pads; whereas the car has burned off 3 sets of rear shoes, for which drums and shoes were and still are available.So yes, I was concerned about rotor life, and still am.
When I do hit the brakes hard, the rears, with 295s back there, do a mighty fine job.
With just 235/60-14s on the front, organics are able to lock the front wheels at speeds as high a 35/40 mph ...... maybe more I just never felt the need to try it. I'm guessing this is because the rear brakes, together with compression braking, are doing such a fine job.I would say outstanding job, but I have no yardstick with which to measure it, because typically, the rear brakes are the ones along for a free ride, doing, they say ~15% of the work, when all 4 tires were the same skinny E70s.
I have over 50 years of driving experience; and in all those years, I have never been in a street-car that stops as well as this one. Careful; I didn't say the best ever; only; the best I have ever been in. And since 1999, and in those 125,000 plus miles, I have not had any close calls. Zero,zip,nada,not even scary, cuz you know why? cuz, when I'm driving, I am just driving, not multi-tasking! No radio/no passengers/ no dicks in the next lane/ and I will never have a cellphone.
When I get the urge to be juvenile, I chose my spots very very carefully; I built the car for my pleasure; not for friends, acquaintances, or Joe-blow in the next lane.
On long trips, when I might have a passenger, I remove the 750DP.
On the street; and IMO;
organics rule, because they;
are easy on my discs and drums,
don't need warming up,
do a MORE than adequate job,
Have great feel (after balancing the M/C and rear w/cs, to the tires),
are easy to modulate,
don't puke sticky brake-dust all over my mags,
and yes; are cheap.
If I had ever needed more, I wouldda installed more. It's just that simple.
So, if my priorities are screwed up; ......I'm ok with that.