We did not try them with Sweep, but when our newbie Willa went through a "the floors are lava" phase after a slip, we used Dr. Buzby's toe grips and they worked well. They're a pain to get on, but once they're on, they stay on quite well (and that's with a 4-year-old, so I'm sure they'd do even better for a 9-year-old tripod). Please keep us posted on Skip's progress!