The carbon radio tray gives some extra lightening benefits, all the mounting holes are at the correct spacing to aid a direct fit which do not need any filing or modification. Servos are a direct fit into the tray and have no issues. There is plenty of clearance around the centre diff and brake setup and also plenty of clearance around the steering servo saver post. The Carbon looks a million dollars and gives the Hyper 7 that extra bit of bling. Overall very well made and to a very high standard.