Thanks. Dont know if this helps but here are the varieties of apple i have:
1 Eater/Cooker: James Greive, 2x Cookers (1 each) Newton Wonder and Tom Putt.
The Crab apple is 'Evereste'.
The apples were chosen (obviously) to coincide with each others flowering - sometimes they dont for some reason
Not sure how 'Evereste' fits in with these, cant find much info on flowering times of crab apple varieties