Unless I have missed it in the earlier posts one of the tricky and underated issues on the Western Arthurs is it is often in cloud or rain and the resulting poor visibility makes navigation difficult. The use of compass and map can be difficult due to the terrain. You cannot rely on the foot pad you are following going where you want to go or continuing. And a GPS is not the whole answer. It will not tell you if it is best to go left or right of a huge rock wall. (well maybe if it had a breadcrumb trail in it, but where is the fun in that).
So you do need to be comfortable navigating in 20 to 5M of visibility, prepared to travel slowly to get it right, be prepared to go backwards to correct rather than any other choice. And be prepared there will be a nav error somewhere.
That said in clear weather it is luverley.