In the BW Solves all your problems book, tracy goes into great detail about how to transition adn page 230 i think it is, there is a plan wih timings etc... except they don;t add up., However the general idea is to extend their awake time by 15 mins over 3 days, then half an hour until you get to 2 hours awake time-my understanding is that you only work on one awake time at a time, starting with the morning and the first nap. Is that making any sense?
We are trying to transition too, we are at feeds at 7,11,3,5 (only a snack but he can't seem to go till 7 without it!) and final feed before bed at 7. I think the key is to follow the LO's cues and be fairly flexible and use EASY as a guideline. Hope this helps x