I personally never check Cervical Position. I have felt it, and I know if I don't feel like it's getting punched during sex, then it's probably high, but I don't record it. For me, checking CM, temping, and OPKs are enough to determine O.
If it's something that you want to figure out, you can read up on it in FF. There's also a very graphic website called mybeautifulcervix.com A girl posted pictures of her cervix every day for an entire cycle.