We have from the 18th-21st down for ASW. Nice and early this year. Suits teams from Scotland as it's the week before our school exams start so kids can get back in time to sit them and don't need to do any while away. Summit was a struggle for us this year - we had to have kids sit exams at 6am and then go straight to comp when they finished! So much unnecessary stress.
Dates aren't ideal for UK teams who want to do both ASW and Summit though as there's two weeks between them. Need at least a three week trip to do both.