I don't understand the JW position. In the Christian lair, I know of two versions: the RC transubstantiation: wine and bread are mysteriously transferred into the actually present true blood and meat of a jew who died some 2000 years ago, and the Luthean consubstantiation: somewhere, somehow, the true blood and meat of a jew who died some 2000 years ago is actually present together with the wine and bread. No question in either of being only a thing of remembrance.
Do the JW acknowledge Yeshua Josephson's being the true, sacrificed and resurrected son of God? If not, what the heck are you doing in a Christian subforum? If yes, when did they change such a fundamental view? In a flyleaf, translated into many languages, and for example in their The Millennium Dawns, VII:221, JW's claim that Mr. Josephson wasn't resurrected in the flesh, thus clearly contradicting Acts 1:31 and lots of other NT verses.