NC
I once asked your question to R’ Belsky z”l (I am almost certain it was R’ Belsky this was years ago, it may have been R’ Heineman yibadel lechaim). He said that yad Soledes bo isn’t judged when you are bracing yourself for hot water, people can touch and not recoil and far hotter water than 110 degrees, when they expect it. He said that yad soledes bo is judged when you don’t expect it, imagine using your negel vasser and finding it 100 degrees, you’d be surprised but not recoil your hand at 110 degrees if you weren’t expecting it you would pull your hand back, though you could will yourself to keep your hand in place.
I asked him where he got this distinction from, and he said its obvious, and that if it ws the same temperature, as that f scalding baby’s belly this had to be peshat