So after what happened yesterday (see previous post), Skye doesn't want to have anything to do with the collar, any of the collars!
Yesterday, Peter did a training session where he presented the large collar and she just turned back and walked away. She did the same with me this afternoon.
She did interact with the big collar when I put it on the ground with treats in the middle.
She is not afraid of us and still motivated with the training. She just walks away from the collar. This is very disheartening. We were so close!