Yes, Lance Chilton's book is great - we have a copy but, unless it's been updated (?)I think some of his routes have been blocked/fenced since it was published. Still a good buy though and could be used in conjunction with the 'new' map to provide 'work-arounds'. I particularly like the contour markings on the Terrainmap - helpful (if they're accurate) if the marked path goes 'missing'
Have to admit that our proper walking days are over now (dodgy knees etc.) but still fun to read the map and dream about where we would go if we could!