When I got home Daisy had some rubbing on her shoulders from the collar, I looked everything over and realized the singletree hadn't been moving at all! That's probably what did it, so I loosened that up so it can move back and forth easily. We'll see how the next drive goes, and I'll be checking more frequently for the rubbing! Rocky did his thing, lol, basically tried to eat the ENTIRE drive! I can't wait to get him in harness and have him help the girl out!