Not sure if it is just my browser/internet. (been acting up lately) but the pictures didnt show up.
There is no doubt that the ETA design with more weld is better than LP with alot less weld. But why stop there. Why not just go ahead and make it a solid weld for little more cost.
I know I am splitting hairs here, and given the thickness of the material it is likely to never be an issue in that case. But like I said, I see far too many things rot out think gauge decking under heavier supports that would have never been an issue if welded solid.