I am really impressed by how stout these are, I've been using them on an IH 2000 loader on a 656 utility tractor and have been completely impressed with the forks themselves as due to the fact that the visibility is horrible I've run them into the ground and other objects and haven't hurt them one bit. I tore a helluva gouge across probably 20' of the barnyard pushing a pile of scrap lumber and light brush, didn't hurt the forks one bit!
One thing I will say is that the adjustable cross bar is very light duty, it does it's intended job but I plan to use it as a pattern and make a beefier version or considering how simply it would be I'll probably just make a couple fixed width bars, i figure that a 36" and a 24" would cover most needs.
I'm completely satisfied with these forks, the build quality is solid, granted some of the welds don't look very nice but they are strong. I would buy them again.