Big area for argument at our track, I hear pros and cons about both. Standard chains are massively cheaper, they have the least rolling resistance on the stand and are easiest to set the tension, although they stretch allot more and faster, and of course they were out and break faster. O-ring are stiffer on the stand, but loosen up when they get hot. They are much more expensive but last way way longer, although they are harder to tension because they quickly develop tight spots. Looking for opinions on they topic