I don't think this report has appeared here; caveat this is a large thread.

Discovered via the BSAP History Group and it is a scanned copy (174 pgs), the main author being Bruce Hoffman and available for free via:https://s3-us-west-1.amazonaws.com/groupsioattachments/61171/74548006/746/1?AWSAccessKeyId=AKIAJECNKOVMCCU3ATNQ&Expires=1591 276652&Signature=RWrxLxwZXOm3zpwyyqPlmmZlRz4%3D&re sponse-content-disposition=inline%3B+filename%3D%22rhodesian+less ons.pdf%22