Hey, those knots look good, Don't see a thing wrong with them and gutted cord takes a little more care.
When you say partially gutted, do you mean that some of the strands have been removed throughout the length of the cord? Didn't know that could be done, I have a feeling I'm going to make a mess.
On the end of the knotted part on some knife lanyards and my one set of pace beads , I started cutting the trailing ends flush with the knot , burning the remaining fuzz and then putting some superglue on the end of the knot.
Haven't had one unravel yet, or at least so far. I tried to take one apart for something else and had to cut it with a knife.
I'll have to try to figure out this posting pic thing and get a pic on here.