Had a few trips recently to/from Scotland since the 350s were introduced. Some are 8 car and some are 4 car. This seems madness, 8car is almost always way too much (for now) but 4car can be very congested. 6 car would seem to be just right. Why is it like this? Even having the 8 car be 2 separate 4 car would make more sense to me, as it could wait a little while and set off 1 hour later giving much needed more frequent journeys (and spread the capacity a little better)?