You must feel happier now a decision's made....
Just one point though, dependant on how far up the tail the break is .i.e.
....... bitches squat to toilet 'if the broken part is higher up than the bend' (above the curl) and the tail is left too long after surgery it can touch the ground and causes discomfort and slow healing.
However, 'when the break is lower than the bend' that's better because the greyhound could curl the tail out of the way and vets would be inclined to leave more on then.