That's interesting Dave - I was thinking of Steel End, Wythburn and Greenup for next attempt, as the descent to Dunmail is better I think (for my purposes at any rate) - Steel end and your route looks better as I have to consider negotiating it in the dark if legs really bad and it was the thought of the Lining Crag that maybe influenced me last year... I dunno Dave what have I started here lol..?
Can't seem to zoom in to 25k though on your map but I'll check it out,
The only thing is Mick, from the end of the path at top of the forest up from Thirlmere, to the top of the path that steeply descends to the main Rosthwaite path, is cross country (no paths). Looks simply enough to navigate with the help maybe of a compass, but not sure about the nature of ground vegetation. I may go and have a look around soon.