[RayTurner1126]

we used the hollow poly cord with a barb and it hasn't come apart yet, but we were having quite the problem with it slipping right off our rollers, even though it's 8% (i believe) short. what we did was added a zip tie across it that allowed for just the right amount of increased tension in the middle and it didn't interfere with functionality at all! I recommend adding some sort of tensioner in the middle of the two ends of the loop of poly cord to avoid slippage problems, but other than that i've loved the poly cord. apparently in 2006 we used a belt that had to be sewn together and it was absolutely awful, it kept wearing down and bunching up and they had a ton of problems with it, that's why we went with poly cord this year. it's a good choice!