Its difficult to say as it depends on so many factors, how much you charge, how many other woman are touring that week etc. But I have gone on tours that were fairly late planned and just used AW & done well & tours when I've advertised multiple places and in advance etc and not done so well. I would say though, that those large cities, esp in the North (I would count birm as Midlands, not north but the point is the same) are often cited as been difficult to have busy tours, because there are so many agencies/parlours and a higher concentration of tourers etc.