I walked the entire length back in 2001. I used this guide and it was easy to use as well as very accurate;

http://www.amazon.com/The-West-Highl...y+Mercat+Press.

I agree that you would be better off if you planned out in advance when you would be entering towns and having lodging already set up. Me and my old Army buddy that walked it back in '01 did not do that and it made life a bit interesting at times when looking for a place to stay. But we also brought a tent and camped out every other night we walked. The midgies were relentless at times but I used some locally purchased bug spray that sort of "helped". But the best protection against them was to finish our walk before dusk and be at the bar drinking before the swarms were at their worst, also just walking and keep moving seemed to keep them at bay most of the time. Walking the West Highland Way is my favorite vacation I have taken so far. I would love to walk it again and continue on the Great Glen Way. I loved the Climbers Bar in Glencoe and The Drovers Inn as far as great places to tip back a few after a good days walk. Have fun and best of luck.