I realise that it is some time since the last post on the thread, but I have just purchased a 3 car 101 set. I wondered if you had any issue with the matching of the profiles between the cab and the coach sides. I am finding it difficult to align them without the need to remove some material from either the cab or the sides themselves. I have tried to keep the spacing correct for the fitting of both the roof and the floor, but this results in the body sides protruding about 0.5mm around the centre part. Has anyone else experienced this problem?