I think it's not just energy saving. If you have a 20% thin cut that smashes the balls everywhere in that situation, it's a better chance than getting 8 in a row, one ball at a time. It's playing the percentages even when they are badly against you.... I suppose t’s similar to one pocket races where if you’re down 7-0 in balls, do you try to grind out and claw back or do you take the flyer and save your energy for the rest of the set? ...