As I said, TfGM already believe that it's too late. Hence why all the maps have now been updated.
We apparently have enough trams to run the airport and continue the velopark turn backs.
Turning at the velopark also gives us an easy way of maintaining route knowledge as the actual turn back isn't included with Ashton line route learning.
Thing is though is that it's been proved a number of times that it is possible to turn the medias in Sheffield street.
Well, quite. I suppose it's possible, but simply looked on as an easy way to attempt to improve reliability/reduce delays - rather than actually operating a reliable fleet to a robust timetable with clever contigencies, they just plonk extra not in service trams in and hope. It does work, clearly, but along with not using the comprehensively remodeled Cornbrook it just shows scared, weak management!