Anyone planning a recce of the Trog (or Midgley Moor race, or pretty much any fell race in the area covered) may find this book handy
http://www.westyorkshiremoors.co.uk/ It's a lovely book, and it shows up those little trods that the OS map misses (and that in some races may prove quite handy!).
I won't accept these maps as your race map mind ;-)
I'm not on commission here and have nothing to gain by recommending it!