I think those who shoot smoothies mighyt find it interesting to try smaller bals and see how they work, I have had good groups with a .530 ball in a .58 with a patch jyust tight enough to keep the ball from falling out, the first group of five out of my new French hunting gun were loose enough to easily thumb start and push down easily with a wooden rod, guns may vary but a super tight combo may not always be the ticket with a smoothie, I have at times just put an over powder card the the ball and then an over shot card to keep the ball in place, smoothies are a kick only one sight to fool with, very forgiving as to ball/patch combos, out to 60 yds or so many will hold their own with rifles.