Do you mind sharing your chicken secret with several more brethren?
OK well here it is. Like I said its nothing groundbreaking but hopefully it will help take some of the guessing out of what you put in the box.
Skin down in the butter bath(or whatever you are using) until the skin is bite through tender. How do you know that the skin is bite through tender? Well you could take a bite out of it, but that might not look good to the judges. There is a way that you can tell without biting it.
When you think they are close take both index fingers and press down on a thigh. Try to stretch the skin by moving your fingers away from each other.
If the skin stretches and then snaps back into shape, its not ready.
If the skin stretches and slowly shrinks back, its almost ready.
If the skin stretches and hardly shrinks back, or not at all, or if it starts to tear its ready. From here on you have to handle the thighs VERY gently. No tongs! I use brown cotton gloves with nitrile rubber gloves over them. I put them on the pit at high INDIRECT heat to get them to brown before saucing.
Every time I do this the skin is bite through with no scraping.
Hopefully this is not considered a highjack since it goes with the theme of the OP.