Kuru Kuru Kururin Challenge 11-3
Top Time : 4.43
Make 5 taps on the left hand wall before you start. This may seem odd but it gives the best timing possible. Then leave near the left hand edge of the gap, with the stick about vertical. When you hit the first set of springs push yourself around on them as much as you possibly can so that you don't have to wait as much for the last straight.
When you get around to the last straight if you were quick enough the spiked balls moving horizontally shouldn't be a problem.