So even I am having trouble with RF's actual posotion regarding the tablet as he appears to argue three seperate cases
Bart, I think Furuli would say he is presenting different hypotheses about what may have happened to account for the problems he perceives with the tablet. He leaves the reader to make up his/her own mind. However, his own conclusions in his 3rd revised version are as follows:
"The following principle conclusions can be drawn on the basis of the discussion of VAT 4956: The diary may be a genuine tablet made in Seleucid times; or it may have been made in modern times [in previous edition: 'but in modern times someone has tampered with some of the cuneiform signs, or, the tablet was made in modern times;'], the obverse side by help of a mold, and the signs on the reverse side being written by someone. Because of the excellent fit of 13, or most likely all 14 lunar positions in 588/87, there are good reasons to believe that the lunar positions represent observations from that year, and that the original lunar tablet that was copied in Seleucid times was made in 588/87. Because three planetary positions are wrong, but not far from being correct, they may represent backward calculations by an astrologer who believed that 568/67 was year 37 of Nebuchadnezzar II. Thus, the lunar positions seem to be original observations from 588/87, and the planetary positions, or some of them, seem to be backward calculations for the positions of the planets in 568/67." - p. 416
So untangle that.
Does he believe every astronomical tablet has been tampered with? I'm not sure how he thinks he can prove all of this when it corroborates with the rest of the evdience
Tampering? No, PP. He either tries to undermine the chronological usefulness of other astronomical tablets by quibbling over the interpretation of the signs for e.g. kings' names or the astronomical data, or he tries to redate them to fit with his preferred years.