Article from Screenrant with some additional details on Bruce’s last interactions with Wong Chun Leung.
“The sparring continued for a while longer, and once it was over, the two engaged in a friendly argument over who won, with neither being willing to admit that the other was better.”
They’ve basically added a few more comments from Wan Kam Leung, one of Sifu Wong’s top students and someone who was there for these interactions (there is footage of Wan sparring with Wong on the set of Enter the Dragon). I met him a few years ago at a Sifu Gary Lam function at Lam’s studio in LA (before masks!). Sifu Wan was very impressive and interesting to watch up close. His modified version of Wing Chun is hard to describe but very functional! He has added a lot of controlling actions that are part Chin Na and in part more reminiscent of internal styles like Tai Chi, with an absorb character. I’ve heard he has done some security work, so in that context, more Chin Na makes sense.