All great info, thanks everyone! I'm in a bad news/good news situation now. The bad news is, I noticed some yellowing going on and I had to contact WTF for some replacements. (Side note: he responded almost immediately and the cost was so insanely cheap, I tossed him an extra $20 just to approach what I thought was a fair price!) I decided to go ahead and build what I had anyway. I figure it's at least good practice, and maybe I can use them in a Sandtrooper suit down the road or something.
Now, here's the part where I dump a ton of photos and ask you kind folks to tell me all the things I screwed up - so I don't screw them up on the new set! Some things I'm really unsure about:
1. Is the same type and thickness of plastic used for the cover strips as for the armor itself? The sheet I'm carving from is much thicker and stiffer, and it's causing issues with trying to get both sides of the strip flush with the armor surface.
2. How long is unapprovably long for cover strips? I'm afraid I might be at or near that limit with my right bicep. This cover strip also ended up off-center.
3. I had some issues with joining the pieces of different curvature that led to a wavy surface. When I couldn't get edges to lay flush, I always ensured the front-facing edge looked good and let the back edge float however it fell. Any problems there?
4. How do you get a camera to focus on the armor instead of the background? My Galaxy S10 just won't focus on it instead of the background! (This last one isn't an approval question, but I'm still stumped.)
There's actually a ton of pictures over here: https://imgur.com/gallery/0AtmsqT