oftheherd1
Senior Master
One interesting note on #2. While it does do that, and that helps a bit if you are struck in the abdomen, a Ryukyu Kempo instructor showed me how much more effective it is to push you belly out to meet the punch. Startling difference.
If you say it is more effective, I believe it. I just can't figure out how that would work. Any anyway, I am pretty comfortable with kiai-ing during an attack to the abdomen, or while break falling.
I would appreciate a little more explanation though.