So, our 11+ journey comes to an end, and it's finishing not quite how I expected, but I don't think I can say we are disappointed in the outcome (although I have to admit every rejection still hurts).
I can only conclude that he hasn't done as well as I thought he did in his ISEB (and his Atom scores predicted), because of the three we applied to with ISEB, the outcomes are:
KCS: no interview;
Hampton: waiting list. Interview didn't go well (I posted about it before);
Trinity: no offer / wl. Interview went brilliantly (I thought).
For those, who set their own exams:
Claremont Fan Court: no offer. Feedback is that done very well in the exam and in an interview, but don't think the school is right for him (whatever that means). Wouldn't give extra time for which he qualifies. We only applied because it used to have reputation for being accommodating of SEN;
Emanuel: no offer. Wouldn't give extra time for which he qualifies;
KGS: offer received. Extra time provided with no qualms.
So KGS lived up to its local reputation of being an inclusive school for those with SEN, but academically capable.
Then, of course, DS also passed two Sutton grammars and Kent Test... I suspect, it will be difficult for us to commit to an independent school, given we can name a grammar in an EHCP.
Thank you to all in this thread and in the PMs, who helped along the way. I wish your children get a place in a school that will be best for them and their success.