I happily use the new 2007 issue of the Book Scientology 0-8 – The book of Basics, as this not only contains more versions of each scale or table, but always gives the reference on which each is based. An ideal tool for my study and research as I can refer to the original LRH works. This did not exist in the 1st Edition of 1970 or the later ones.
Very revealing the appendix, where you find a Chronological Index on pages 507-517 on all references contained in this Book of Basics. I counted the references for each year and got this graph from the table: 
This clearly indicates, that LRH developed his basics only in the years 1948-1972.
What about the lonely issues in 1978-1982? These are clearly staff work:
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The 26 Perceptics (DAB 2-2, Aug. 51), was later enhanced by the HCOB 10. March 1970 List of Perceptics, which gave us 55 and now in 1978 The List of Perceptics with only 2 more: “5. Depth” & “57. Kinesthesia”.
Kinesthesia is defined as “the sense of self-movement and body position”, which was 1970 already mentioned as “23. Motion of Self” and “26. Joint Position”. So 1978 is a fake revision.
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The Expanded CDEI Scale of 1978 is based on the 5-pages HCOB 11. Aug. 78 I Rudiments – Definitions and Patter, clearly staff work by Diana Reisdorf, who justified her work by a dozen references given.
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That the revision of the Auditors Code in 1980 is an evil alter-is, I had already documented in Change of the Auditor’s Code – Removal of LRH!
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The remaining 3 references don’t really belong in this book: they are essays and not tables, axioms or scales. They also could not be found in the earlier editions of Scientology 0-8. These essays were probably re-issued from earlier LRH-lectures or notes, like many good references from those later years.
So even the current tech team, working for CST/RTC came to the same conclusion as I did: LRH finished his research in 1972. They did not find any later BASICS to publish in this Book of Basics.
Another publication in which the same team published with CST-issue authority their findings on 1972 is the Materials Guide Chart: I showed and commented on it in my video presentation:
Proof by Church of Scientology: LRH lived up to 1972 – Part 1 of 3 Materials Guide Chart https://youtu.be/fYaeEqT9UeQ on my Youtube-Channel: Blog.Scientology-1972.org: Link is http://x.scientology-1972.org/youtube
Here are the Index pages of the Scn 0-8 Book, if you want to check my statistic:
[pdfjs-viewer url=”Scientology 0-8 the Book of Basics (GAK 2007) chrono Index” viewer_width=100% viewer_height=1360px fullscreen=true download=true print=true]
And my summary table:
| Year | No of References |
| 1948 | 5 |
| 1949 | 0 |
| 1950 | 17 |
| 1951 | 29 |
| 1952 | 35 |
| 1953 | 15 |
| 1954 | 24 |
| 1955 | 13 |
| 1956 | 15 |
| 1957 | 17 |
| 1958 | 12 |
| 1959 | 10 |
| 1960 | 2 |
| 1961 | 5 |
| 1962 | 5 |
| 1963 | 4 |
| 1964 | 2 |
| 1965 | 3 |
| 1966 | 0 |
| 1967 | 1 |
| 1968 | 1 |
| 1969 | 3 |
| 1970 | 2 |
| 1971 | 4 |
| 1972 | 2 |
| 1973 | |
| 1974 | |
| 1975 | |
| 1976 | |
| 1977 | |
| 1978 | 2 |
| 1979 | 0 |
| 1980 | 2 |
| 1981 | 1 |
| 1982 | 1 |
| 1983 | |
| 1984 | |
| 1985 | |
| 1986 |