I don't know whether anyone else here has read this. I found it interesting, though I didn't think the details were always easy to follow.
I think all the main points are summarised in the article on Soal by Donald J. West in the Psi Encyclopedia, which has been online for some time (they didn't save any revelations as surprises for the publication):
https://psi-encyclopedia.spr.ac.uk/articles/samuel-soal
It's maybe worth noting that, in a few experiments that produced significant results, Soal's involvement was such that the authors weren't able to work out how he could have cheated. But they found such abundant evidence of fraud in the surviving records that all Soal's work is obviously tainted beyond redemption.
Strangely enough, the work that was probably viewed with most suspicion at the time - the telepathy experiments with two Welsh schoolboys in the late 1950s - is least tainted by Soal's cheating, because there were some significant experiments in which he had no involvement at all. In this case, it was the boys who were suspected of cheating, but it's not clear how they could have done so. (One suggestion was that they used an ultrasonic whistle, audible to them but not to the older experimenters - particularly Soal, whose hearing wasn't good.)
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