Does anyone know where you can get a past/practice paper for NW? I thought I'd previously bought one for my older daughter at an open day in the summer term, but from the website it looks like this is only in September around the time of the test. Thanks.

You are right. The main opportunity to buy the practice paper is at the open day. I would not be surprised if it is the same one sold year after year so if you already purchased one then you won’t need another.

I didn’t know the sample test existed when preparing DD and she did fine with just Letts, GL and Bond practice. You could try contacting the school to see if they sell remotely or a way you can pick up. Many people view the school in Y5 and pick up the practice paper then and have a year to go. DD who does the tours (now Y9) affirms this is her general experience, a range of Y4,5 & 6 looking round.