No, the belt wasn't slipping. It was extremely sticky stuff, and is was about... well, you could barely see the tops of the tires. I dunno, like I said, it was only the one time. Hey I know, maybe it was concrete setting up, so the Grizzlys didn't have to go around the hole!!!!!! LOL!!!!!! (laughing very hard here, how about you?) I wonder why I am the "Instigater"