For what it's worth two of the schools we sat for made past papers available on their website - KGS and St John's. Very open and straightforward.
And I just found "exam plus interview' fairly straightforward to get my head around - but maybe I'm just old-fashioned. But 'find out if they're academically able, then talk to them to see if they're a good fit for the school' seems a very straightforward way of going about things...
I suppose there is something about trying to gauge creativity, but I'm not sure how you'd do that, realistically, or if conflating it with 'works well in a group' is the way to go. The majority of the most creative people I know don't work well in groups at all... Where do the solitary, deep thinkers go to learn nowadays?
"I know the prep schools around here put a lot of pressure on parents to apply where they think they will get an offer so they can put it on their info."
None of the schools I know of (and certainly not ours) discouraged girls from applying on this basis. Why would they?
There were frank discussions with teachers about anything that might be vastly out of reach, but they're just putting the offers on their 'info' so they're not vested in discouraging marginally risky applications. If they don;t get in it's no skin off the schools nose - they're not publishing 'places our girls applied but got rejected from'... Ensuring parents are realistic in their ambitions and don't sell their daughters a pup is surely part of their job...
Anyway, it's moot for us, it's a great school no doubt, and clearly the girls there are happy.
I'm just flummoxed by their entrance process. It's possible they're doing something very groundbreaking, but if so then they need to communicate it better than they have IMHO. Because I did a lot of research, am relatively bright, and went to three open days there, and I still had no idea what they were looking for, and whether it was what my daughter had.