If that's powder paint on those jigs and you can clean out those eyes then they are not baked long enough or hot enough. Need to clean the eyes then bake at 325 to 350 for 30 minutes. It will be so hard you will never get it out of the eye's.
Your tie's look really good and 90% of the time I tie mine with a thread neck like yours. If I might ask a question, what is the dark green color paint on last jig in first picture? Welcome to thee board.
Proud Member of Team Geezer
Charlie Weaver USN/ENC 1965-1979