just to summarize what I understood reading the book, I think that:
1. the real key to the comprehension of those lines are the words "the furthest to the west". This should be the main clue against Leukas as the Ithaki of the Odissey.
2. the author is supposing the "modern" Ithaki as the ancient Doulichion;
3. the "strong westerly following wind" of the poem (Telemachos' voyage to Pylos, Peloponnese) is described as the condition to get out from the main port of Ithaki/Paliki without rowing. The route follewed by the son of Odisseus should be, in this case, from NW to SE (remember, anyway, please, that at that time the greek sailors were used to follow the coast lines not the straight routes);
4. the one suggested by Bittlestone really does seem to have very strong points, but we need to wait for the results of the drills.
Anyway, this year I'll be in Kefallonia for the third time in three years... but this time I'll be driving through Leukas heading for Apollionoi. The most important thing, to me, is to breathe Odisseus and his poems in all those landscapes...