Thinking ahead to when my pads need changed here,

Front Discs - 308mm EBC Drilled and Grooved
Rear Discs - EBC Drilled and Grooved
Front Pads - EBC Red Stuff Pads
Rear Bads - EBC Green stuff Pads

What does everyone else use? What combinations have you found the best? the brakes on mine do stop but i feel it can be it a bit spongy at times i.e arsehole brakes infront of my brother in law.. i'm about 4 car lengths behind on the motorway and still nearly end up kissin his bumper

also thinking about stepping up to 322mm discs with different calipers any suggestions? and will i be able to keep my 17"s??