Anyone burst blood vessels around your eyes doing them?!
They're incredible, let me first say. I know my form wasn't perfect but the amount of stress on my abs was incredible. It was more than even doing hanging straight leg knees to elbows. It was so taxing that I could only do 6 before ending each set.
I could feel the pressure in my face but I did not expect to burst blood vessels. That has never happened to me in the gym if I recall correctly.