EBC brake pads, anyone using Green or Yellow? Options

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Is anyone here using EBS green or yellow compound brake pads? The prices seem attractive. About $60 per axle for greens and 80 per axle for yellows. Yellows are supposedly a true track pad that has cold stopping power good enough for street and AX use. Seems too good to be true.
I believe Howard R. in AUS is using greens. Howard, if you could spare a few minutes I'd be interested to know how you use your car and what your experience is with the EBC's.
I have been using EBC pads for downhill mountain biking for years and really like them so I'm interested in using them on the car.
I know a lot of folks here are fans of the Porterfield R4S. That's my backup. I'm a little concerned about rotor life with the R4S's though. A friend of mine ran two track events with them on a 2.0L 4 cyl car and there seemed to be a lot of rotor wear and grooving. Maybe it's just me.
Thanks for your help.

Kelly

[Downunderman]

Kelly,

You can't go far wrong with the greens. They work from cold and hold up to about 600 deg c. They don't give off much dust and don't chew rotors. Although if you do a track day you will use them faster than a red or yellow. I suppose its a case of whether you prefer to use up the pads or the rotors.

I use them for competition in classic rally/Targa type events. Probably what you would call a time trial. The stages vary from 7 or 8 km to 20 km. Uphill and downhill on closed public roads. You don't give the brakes quite the hammering that you would on a circuit because you are on and off them more lightly rather than burying your foot into them at the 50 m marker. Even so on a town stage where you do a lot of 90 deg left right in quick succession they get hot emough to blue the discs.

I think they would be great for AX.