I did not get the chance to weigh Wilma right after she laid, but I weighed her today after her post-lay shed and she's down to 299. She was right around 431 before she laid.
I've decided to take new candling pictures once a week, to see if I can see any progress. It felt like the veins were easier to see this time. Here's a new picture (although it's probably not the same egg as before):