Paddy - It calls its self a grass hook or sythette, so I was obviously imagining that it would do the job

I don't have the necessery time or transport or finance to hire one, not to mention that I HATE those big scary machines. I can think of much better ways to amputate my own foot
Muddy - I think that I will sharpen it though I have now lost all interest in cutting the grass in one go. I will just slowly reclaim the garden as I decide to use it, I guess it'll just die back over winter if I don't get to it.
I had initially thought that it would be able to take the grass down just now and then I could use the hook to keep down the awkward bits, but it would seem I was a little optimistic

Oh well...