MCAT for Fall 2019 Admission

When is the ideal test date to take the MCAT if someone wants to apply for fall 2019 admission? I was thinking since primary application opens up June 1st than best would be at the latest the May 5th test meaning I would get my score back June 5th. At the latest what MCAT Test date at the latest would be fine for admission for fall 2019 without being at major disadvantage?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums