I am planning a 4 day Disneyland trip with goal of avoiding huge crowds. I know there are often graduations going on at these times and the 50th anniversary kicks off this May. I will go midweek and was wondering if any Disneyland aficionados could tell me if there would be any appreciable difference crowd-wise between mid May and early June. I prefer June so I don't need to conflict with school but will do anything if it lessons the crush of humanity.