I would stick with Alyn at AS Performance I have been buying parts from Alyn for the road and race car for years and the service is excellent. There are discs and then there are discs! Alyn will give you an honest assessment with no obligation and his prices are very keen. PF Z rated pads are an excellenet all round pad but not cheap, PF01 are also good pads but the dust eats wheels as I can testify to, some of the newer pagid compounds are very effective and not too expensive and kinder to wheels. I would also advise staying away from discs that are drilled all the way through. It really depends what you want to do with the car, I have groved discs from Alyn, not expensive discs all round on the road car with PF Z rated pads on Brembo calipers and the brakes are more than good enough for road use. Only reason I have the PF pads is they were on the race car when i took the Brembo's off, if changing on the road car I would prob go to a pagid compound.