I've just seen that Wimbledon High is switching from assessments at 4+ to a ballot for 2024 reception (my daughter's year). Their explanation is on their website: www.wimbledonhigh.gdst.net/userfiles/wimbledonhighv2mvc/images/headers/02-admissions/Admissions%20Policy%20-%20Letter%20to%20Parents%20and%20Admissions%20Timeline.pdf
They've also changed their offer timeline so they are now out of sync with both Putney High and the Study.
Any current WHS parents or staff have any insight? Have they been struggling to compete with PHS for girls, so now they want to get parents to pay a deposit and commit before they even sit the assessment for PHS?