@SitDownBeHumble
Here is the tricky part for me, because the early decision was implemented last year and my student’s cycle was the year before, so it was new for everyone and we were not sure how it would play out and all the details have not stuck with me, I am sorry. I need to go back and read the results thread, unless @rvhappynow or @lessonwitch2 (or anyone else) can recall if ED for engineering actually affected review admits. My memory wants to say that even though they applied by Oct. 15, the majority of review admits received decisions after Dec. 1. anyway, and more like Jan 1-Feb 19. There was a glitch and I know some auto/academic admits were differed until after Dec. 1.
Every other applicant for any major can update their admissions file through the deadline for supporting documentation (Application is Dec. 1 and supporting docs are usually a week after, but I’d do it the very day) and those qualifying for academic admit will then be accepted and your file will move to the head of the line for review.
In all other majors, the “apply early” (Aug 1 and now July 1) was for the academic/auto admits because competitive majors fill quickly. In fact, for Mays, the spots would fill before the application deadline and auto/academic admits who waited too long, would be asked to chose another major because there were no spots left in Mays.
I believe the next SAT date is Oct. 7. I would register for it and take it and submit the scores the day they are released. In the meantime, study for the EBRW portion and get those 10 points!!!
Meanwhile, I will go look at the results thread and see if I can get a glimpse if early decision applied to review admits and get back to you.