"In his article, Dorf is careful to allow some role for precedent to be deemed mistakenly in conflict with the text when such conflicts are "clear." But, as typically practiced, the (selective) use of and adherence to precedent to "trump" an inconvenient original meaning of the text works precisely to substitute the judges meaning for that which was originally enacted. As practiced, therefore, this is "living constitutionalism" in its bad sense.
But Balkin's reconciliation of original meaning and living constitutionalism subtly alters the term "living constitution" to one that should be acceptable to originalists. So too has former Attorney General Ed Meese who initiated the modern debate over originalism with a series of speeches in the 1980s. I once heard Meese say something like this: Only a constitution that is still followed is still alive. A constitution whose terms are ignored because times have changed is a dead constitution."
Also see Lawrence Solum's take on Dorf's article.