Been a long day. Got a side finished up. I kicked out the tubing roughly 1.5" which gives a way better step. It now feels similar to the factory steps, but obviously a bit higher.
The U shaped brackets worked well too. Harder to install, but reduced the flex a ton compared to the two 1/2 bolts at the bottom.
Since the pinch weld is now exposed (barely), I'm going to add a strip of 3/16 to cover that area with some gusseting.
These things are incredibly strong now and can never shift up into the body like others do.
I'll post more photos as I get more work done on the prototypes.