my problem is as I rock, I keep going down and my body rotate clockwise.
Zach Armijo pointed that this is 'body segmentation' issue, the most common one.
(link to my post : https://www.gymnasticbodies.com/forum/topic/19373-bent-hollow-body-rock-flpe2/)
so I tried to press my navel part as hard as I can but I wonder if that worked.
When I first started this exercise I felt intense burn in my abs but now I don't.
but still I can't master it. no improvement these days.
please leave comments. thanks.