Frame Connectors - install question

Dang, when I did the connectors on my 72 dart about 10 years ago, I put Jack stands under the frame and welded in the connectors because I didn't know you are supposed to load the suspension. (Pre- fabo days)

I must have got lucky because the doors operated fine then and they do now too.

The car had really bad body roll in parking lots, felt like a small boat on the water. It still feels tight and solid 10 years later.

As Matt's pointing out, it may not be that critical. That's how I've always done it though.