I was just about to ask the same question. I am going to weld my rear frame together this weekend and when I put trunk pans back in, why would I want to drill holes and spot weld the panels in place (like the factory)? Why wouldn't I just stitch the panels in? Wouldn't that be a better "weld"? There was not a huge amount of rust on my panels where I removed the seam sealer, but one panel had about 1/8" gap under the sealer!

I understand why the factory would just spot weld. Saves tons of time. Why should I do that though? I have time to stitch the panels in place.

~Angel