Having two versions, i.e. the "public-private" thing is pretty wide spread in kung fu. Many teachers have been said to teach a watered down version, keeping something back for their closest disciples. Robert W. Smith pointed this out way back in 1974 in his book
Chinese Boxers, commenting on how excessive secrecy caused many systems to deteriorate and eventually die out.
I've seen this in the many cheesy books and posters of WC forms sold by my old Chinese sifu. They are full of intentional errors and omissions designed at "cleverly" misleading those outside the inner circle. A really bad idea IMO since sharp people from other WC lineages will spot these "errors" and mistakenly assume that his lineage is crap.
On the other hand, WC "true believers" are always assuming such negative things about other lineages anyway, so maybe it doesn't matter. Still, I just don't think it's ethical to be d
eliberately selling false and misleading information. Another reason not to try learning from books and videos I guess.
BTW William Cheung was not the first or only self-promoting sifu to reference
the Leung Bic story regarding what was "public and private" or "higher level and lower level" WC in the Yip Man lineage. Before William Cheung got a lot of publicity with his so called "traditional vs. Modified" WC in the 80's, my old sifu was claiming something very similar when he advertised himself as the "last closed door disciple" of GM Yip and maintained that his soft, "springy" approach to WC represented the final and most evolved stage of Yip Man's kung fu.
It makes a good story and feeds into the whole idea expressed in the Ng Mui and Yim Wing Chun legends that the secret techniques of highest level of WC will enable even an old woman or slightly-built teenage girl to defeat powerful attackers. Hey, I like a good story too, but I also live in the real world and I like to think that I can distinguish fantasy from reality. ...Even when my own lineage is involved.
