The belt is something I missed on. I went with some tow strap/binder material and it was flimsier than I thought it would be. The mill turns OK, works well just not quite as free as I thought it would turn out. I plan to change the belt material and change the wheels. The main wheels work really well, they are referred to as 100mph kart wheels, really free turning. I like those.

The carpet mill is no different than any other mill or piece of equipment. Used incorrectly, or over used, will lead to problems. I have seen dogs over worked on both. I always thought it was easier to read the dog on the carpet mill than the slat mill. That may be because I started off learning on a carpet mill in the very early 80's. It was a hard turning mill that really worked the dogs. He had a slat mill that he used sparingly so the majority of my first experiences was with the carpet mill. Kinda never got away from it. EWO