Weight was also an important factor in the pistol trials in Switzerland in 1892-1900. The report on the trials in the summer of 1897 mentions a new model of the C96 that weighed only 980g - unfortunately, there is no further information on this in the report. It could be the 6mm C96 (mentioned above by Gerben), which Wille mentions in his 1897 book (Richard Wille, Mauser-Selbstlader, Berlin 1897, page 46).Also, in Paul Mauser's notebooks we see his obsession with weight. He was hardly interested in the technology of his competitors, but the weight of their guns was carefully noted in his notebooks.
Weight as a factor has been overlooked by many historians.
Very interesting, I was not aware that the Bolo was called officer's version (or short version) back then. Learned something again.The Bolo indeed was only know as the 'short' or 'officers version', although the 6-shot pistol was also referred to as the officers pistol.