Just saw this.
That'll be the machine that we saw, it rocketed over to the West of Balerno, approached from the South. Saw it turn East around what looked to be around the area of Dalmahoy Golf Course, then lost sight of it.
Did it go anywhere near Edinburgh Airport?
Edited to add - I'm glad someone else saw it, seems unusual a fast jet can get through the Edinburgh zone relatively unnoticed, especially a GR4.