Good move, Honeywell. Thank you for putting this out there.
Honeywell is a special school not because of it's outstanding Ofsted report, but for the truly local feel - the children feel part of something, their friends are local, playdates are walked to, they walk to school and get to know the lovely lollipop ladies and gents, they live near their headteachers. SO rare for a London school.
All these parents getting one child in, purely to move out for a cheaper/bigger house and slip a few more siblings in - causing driving/parking hell for those who actually live locally to the school are ruining the feel of a truly local school for their own gain, and at the great cost of those living in the surrounding roads whose children should be in those school places.
Siblings should be at one school ideally. But that's a factor you have to consider when you choose to move away from your preferred school. You shouldn't take advantage of a loophole in a flawed system to allow you that luxury.