Great info - thanks all. appreciate the input.
DS20 scheduled a meeting with GC next week - to clarify on the school policy for sending quarter grades for EA schools - great to know that typically high schools send this (I didn’t know that earlier - and based on official transcript format of his school, assumed that final transcript will have no quarter grades). If they do update that info to EA schools, he will apply to most of them in EA and hope for the best.
Also DS20 is working on his 2nd draft of commonapp essay - and have drafts of UMich and GT supplements (advantage of applying to summer programs) - so maybe he will be able to make it to the Oct 15 deadline for GT (Nov 1st for others).