If the total tension is the same, of course, 4 strands are better than 8 strands, and 8 strands are too many, which leads to more chances of imbalance. But when the rubber is too thick, 4 strands are better than 2 strands, because 2 strands are too thick, and when the rubber is too thick, the "bulletproof effect" of its internal components will be obvious when it rebounds. In short, if the rubber is not too thick, the fewer shares the better.