Since requests to order score reports have the SAT and SAT subject test clumped together, do colleges receive a combined report with both scores, or are two separate reports sent (either by mail or electronically)?
Consequently, if you send 0 out of 2 SAT scores (i.e. none) and some/all subject test scores, would it be considered as using Score Choice for the SAT, or will only a report with subject test scores be sent to the colleges?
Colleges generallly get electronic transmissions of score reports. An SAT report contains info different from a subject test report so technically there is some kind of division although it is still part of the same transmission. You are likely misreading what colleges require and you cannot split hairs via interpretation of score choice in relation to the content of the electronic filing.
The real issue you need to determine is what does the college actually require regardless of the format of the transmission. Contrary to what many beleive, there are actually only a small number of colleges that require all scores and what they actually require varies. Go here and review this thread (through to the end so you get additions and updates) to learn of colleges that actually have an all scores rule and what it means for the particular college: http://talk.collegeconfidential.com/sat-act-tests-test-preparation/1912440-must-you-submit-all-sat-act-or-sat-subject-test-scores-p1.html
The colleges that I am applying to that have all scores/unclear policies are Stanford and Cornell. For Stanford, I received an official response stating that I can use Score Choice for SAT subject tests since they are only recommended and not required.
For Cornell however, they state that they do not participate in Score Choice, but they only require either all SAT or all ACT scores. In addition, their policy on subject tests is also vague (some majors require certain tests, but it does not mention if they want all scores). So if I send none of my SAT scores, it could mean I am using Score Choice even though I am fulfilling Cornell’s testing requirements.