but I can do 30-40 without much effort, and it's boring.
yea it becomes ridiculous after a point. did 66 ab wheel reps 2 days ago. I think they are fun because I progress relatively fast, though probably time to switch gears. I will try the dragon flag in the weekend.
Let us know how it goes. There are lots of how to vids to learn from.
Tried it. Concentric portion of the movement: currently impossible. Eccentric portion: hard to keep the legs perfectly straight but possible.
Challenge accepted. It will probably take many weeks of doing eccentrics before I can succeed with the concentric portion.