To glue or not to glue.

I guess that may be so for C-shaped gussets; not sure otherwise.

Pretty much. Or run a single needle and thread through every 5-10 holes, less around a corner, similar but cheaper.

Thanks. Yeah, I saw those. (And, autocorrect strikes again.)

Thanks. That does align the holes while you are stitching. But then there’s still a potential gap at the edge. I guess edge paint can correct that, but worry about it’s durability. Edge Kote and burnishing don’t address the gap. I’ve recently started using a stitching iron on the face piece, gluing the edges, and finishing the stitch with an awl.