I have watched a a series of videos lately that promotes using center ball (without right or left) for positioning at first then adding right and left afterwards to be used only rarely in 8 and 9 ball. It indicates most players tend to use spin on most every shot and that is why they plateau. It is their lack of understanding of natural ball positioning that eventually stops them from improving. At least that is how I interpreted it. I would like to know what the others on here for the most part think of that and if they play spin on most of their shots or not.