Something has to give and be at the end and the bean counters and organisers will have tried to extend the event best they can - TT isn't much different with Senior at the end, i'm wondering also if with the much stricter licence requirements these for TT Course Racing having The Manx/MGP first means the riders have a better chance of getting full race experience and road signatures for potential/future TT entries.....not to mention the huge expense and commitment of the riders.......as far as i'm aware the event and experience at The Manx is a big plus point where insurance, risk and H&S departments are concerned in that there would be issues with just having the higher speed TT as a stand alone event.