Thanks so much to everyone who gave me flossing color suggestions. You've got me thinking.
I made all the changes, taking off where needed, measuring and re-notching, and truing all the seam lines again.
Instead of trimming the bottom edge as marked during the fitting I decided to I leave it as is and shape it up when I do a final fitting.
I feel confident enough that I'm not going to sew a second mock-up. I probably should since I added at the bust. But I'm thinking fitting issues will be minor, and fixable by just taking in, or letting out, a small amount at a seam line. Hopefully.