I have made progress on the torso strapping! Unfortunately I didn't have anyone around to get a pic when I had it on, but I'll get one soon! The kidney plate wanted to really push out on the side compared to the ab. For the right side, instead of using pieces of scrap ABS to make the slip joint (not sure what to call it), I designed and 3d printed two pieces in white ABS that slip together nicely (not an exact color match, but not too bad). This worked really well. The left side isn't too bad as I tried to keep the strapping close to the edges. Putting the belt on helps tighten it up, but I'll deal with that later.
I'm working on the posterior now. I have some trooper butt, so I'm making some v tabs to take care of that. The posterior is still uncomfortable as it digs in, so I need to address that too. Once that is all taken care of, I'll add the snaps and split rivet to the cod. Then onto the belt!