This is just about the limit of my strength, unless I use a bigger cheater bar. And this is one case in which having a little greater, um, physical inertia comes in handy.
For more info on hand bending, see https://www.metalgeek.com/bend
Since someone asked, here are the clamps I’m using:
https://www.amazon.com/Bessey-8-Inch-Super-Quick-Sliding/dp/B0006694BE/metalgeekcom-20
Post time: Jun-21-2017