If I sent scores to a school early on and now want to go test optional will the college see those scores?
All the schools I applied to early had a prompt in their supplemental essays/add'l info prior to my submitting the application that asked me if I wanted my ACT/SAT to be considered part of the application. I had to sign the form and submit it. Otherwise, I could have asked them not to review the test scores at the time I submitted the applications. Therefore I feel with certainty that most schools will do the same thing whether or not you have ACT.org or CollegeBoard send them your scores or if you self-reported them earlier.
Hope that helps.
I think that they receive your scores still, but if you say that you don't want them to be considered as part of your application, then they shouldn't be part of your admissions decision.