Honestly, its all hearsay, unsubstantiated opinion and rumour ,all of this "who learnt what of who stuff"

This is true. That's why I posted those video clips so people could have a look for themselves. There is no doubt that Yip Man "did his own thing" and was truly the GrandMaster of "Yip Man Wing Chun." But there is also no doubt that Yip Man had multiple influences in developing his Wing Chun. Exactly what those where and to what extent is all conjecture now. But some things tend to make more sense and fit the story better than others.