Shoppintractors, the image you posted of the subsoiler is exactly like mine except for the color. The braces running from the sidelinks to the toplink have a decal on both sides. If you go back and look at the model John (JWE) got, it is nothing like this. The main beam looks much smaller and has no side support at the toplink. I think his unit is just one step beyond a prototype and is nothing like the full-sized subsoiler.
I checked every weld on my subsoiler and they are all well-formed beads with what looks to be good solid joints. The shoe is mounted with the correct hardware. I didn't have a chance to use it this weekend, but I will give it a try soon. One thing I did notice is that the main beam is made from 1" thick by 4" wide stock. I may break a weld, but I'm not likely to ever do any damage to the beam.