I have had a quick skim read over what was said and it looks like scooby Pete has said what I was thinking, I know a guy that builds and races short wheelbase land rovers, he commented once on my drilled and grooved discs with stock pads, he said he only upgrades his pads, never his discs, he uses EBC pads, I have used the greenstuff ones in the past and they are awesome, it's one thing I'll be investing in at some point, also for certain models of impreza tegiwa do a thing called a brake flex stopper, when you brakes the bulkhead is that thin it bends under pressure loosing the stopping power you have, for £30-40 you can get them on ebay, my mate has one on his bugeye and it works !Removed! well, also on other cars I've had the braided brake lines are worth investing in, standard rubber ones tend to expand slightly when braking, good ridge braided ones stay the same so better braking, if you upgrade the discs, stock ones are goodfor general driving, if you are on and off the brakes a lot in a run you will get brake fade, this is the only time you should bother getting drilled and grooved tbh