Hi, I am doing my first track day oct 14th at angelsey (anyone coming?) I plan on changing my brake fluid and wondered what people used and recommend?! Also,would braded lines be a worthy upgrade or are they already braded on the Trophy? I have red stuff pads at present and grooved discs that came on the car,not too sure on the quality of these discs.does notice on a long,hard brake they drone when hot.Are these the grooves causing the noise or indicate a problem? Sorry for all the questions.Help on any would be much appreciated,thanks!