OK ...how's this to get us onto page 16 and beyond...
From
Wing Tsun Welt (Wing Tsun World), the online bulletin/newsletter of the
EWTO (the same organization the Victor Gutierrez, the guy shown in the OP used to represent) comes this article written by a man with no vowels in his last name, Stefan Crnko:
Interview with Sifu Stefan Crnko about the BlitzCombat WingTsun-Programme WingTsun-World - The Magazine of the EWTO
For those of you with little patience for reading such a long article, the part that I found interesting and relevant was where Crnko addresses groundfighting. Among other things, he is quoted with the response below:
Does this mean you don’t teach groundfighting?
"No, I must have expressed myself unclearly. I only teach WT people very little ground-wrestling. Instead I show how pure WT methods (blows, kicks, Chi-Sao), and especially elbows and knees, can be used on the ground to make life difficult for wrestlers …
In short: I teach a anti-groundfighting, i.e. WT methods that can be used against typical wrestling attacks on the ground!"
Now, if you go to youtube and check out videos of Crnko's cage fights, you will find that he is a powerful man, a strong WC striker who had some success. You will also see what happenned when he was taken to the ground (save some time and skip ahead to about 3:00):
There. Don't bother to read the rest of the article, or consider that Crnko learned a lot more about grappling after this experience. A reasonable and measured approach will never get us onto page 16!!!
On the other hand, I should point out that while the article in its entirety does value grappling in sport, Crnko still
insists that WT for self defense is a complete system and has it's own solutions to a grappling attack. Unfortunately, when going up against a guy as big and strong as he is, and particularly, a guy with some grappling skill, Crnko's
pure WT training didn't work out so well.