brake dics advse needed

[tweed]

http://m.youtube.com/watch?v=1tmQ5pMrFl0

Don't know what the gas is but mainly carbon

[leigh_harty]

I used Greenstuff pads when the car was more standard, and found them pretty good.
They work from cold, aren't noisy and don't give off much dust.

As the power rises, suspension gets improved and brakes get used harder, I found them lacking...but then a Ferodo DS2500/Miltex M1155 upgrade is an obvious step.

I found the 1st 1500miles or so they would squeak driving slowly but the rest i agree with. Maybe they fade abit quicker due to the vr's extra weight

[Ess_Three]

Cross-drilling is done to aid cooling of the disc.

Wrong.
That's what the internal venting is for.
The holes add nothing by way of cooling.

Grooves are to assist the dispersal of dust/debris.

Wrong again...they are to vent the gas layer. The fact that Tarox 40 grooved have grooves so fine that debris doesn't pass through them blows your theory.

[Ess_Three]

I found the 1st 1500miles or so they would squeak driving slowly but the rest i agree with. Maybe they fade abit quicker due to the vr's extra weight

This is normally a function of the pads not being bedded in properly to the disc.

If you carry out a good bedding in procedure and leave a nice layer of pad material on the disc from new, they rarely squeal or squeak.