Don't mean to start arguments but sometimes you have to call a person out.
TTB: From your pics, my guess is 6-8% BF. At 4% your abs should look ridiculous. They only look pretty good.
The thing that bugged me was that TTB is 17 yrs old and he says he has extensive knowledge in training methods and is offering help to others.
As Mike said, Yes, I am arguing with your trainers, olympians, cousin, etc.
Thanks Pete for being there when I'm not. I'm usually only on in the morning and early afternoon. (while I'm at work) I miss all these evening conversations.