Apologies for the long gap and the fact that the promised work on pollination times and shapes has not been published as planned. It is coming. I have been in hospital and have taken longer than expected to recover. My general conclusion about flowering times is that the books are accurate in stating which apple flowers with which BUT local weather conditions do affect the gaps between flowering times. They do always flower in the same order. This was only a small study using just the apples in our one garden.