I took the December SAT with Essay and got a 1510 and a 19. This April, I took the school day SAT (which doesn’t come with essay), and got a 1560. For colleges that require the essay and don’t superscore, do I have to send in my December SAT? Or are the Essay scores separate and can I send in my 1560 with the essay from December?
When ordering a test sent by the testing agency, it will send only the complete test including any essay score if you took the essay.
Moreover, the fact that a college, which requires the essay, superscores does not necessarily mean it will use a test without essay to do so if you submit another one with essay. Some will but some will not use the one without essay at all.
In other words, your best option if applying to any college that requires or recommends the essay is to send both tests.