I have seen some questions that the panel might ask. One of them is "Did your child finish the test?" DS mentioned went she came out of the test that she had wished to have an extra minute. She probably just guessed the last ones. They were probably the 2 questions that having answer them right, she would have got in. I don't know if this honest answer can work for or against us.
The 11+ is, at least in part, a test of being able to work quickly and accurately under pressure. I suspect it makes a much better impression if the candidate is thought to work quickly and make careless mistakes, than to work slowly and not finish. However, there could be very legitimate reasons for not finishing (e.g. dyslexia).
Can I ask the panel if my DS was given any points?
It's a complicated subject! The question would probably be better directed at the authority's representative (and you will be given an opportunity to ask him/her any questions). The question would best be phrased "Could you please help me to understand how the standardisation works, and how it might have affected my child whose date of birth is ......?"