I have talked to the SENCo and the head of transition/Year 7 at school A - and subsequently with the headteacher and the SENCo, at my request.
At school B, I talked to the acting SENCo and subsequently the new SENCo and the headteacher, but separately at that school.
At school C, I talked with the SENCo at an Open Evening, but I didn't proceed with that one.
At school D (separate admissions process, so not quite as urgent, therefore not progressed as far yet), I had a half hour phone conversation with the head and am going in to meet the head and see the school after half-term.
On the CAF, I have put School A, School B and School C.
I took the route of talking to the SENCo to cover bases re the school acknowledging that DS certainly does have behavioural issues, but they are part of his wider additional needs and talking to headteachers, because if schools choose to head down a punitive behaviour management programme, in the schools I was looking at (i.e. not massive ones) the exclusion decision would ultimately be that of the headteacher.