The original instructions on the Track Clean and Dull bottle indicate the use of water for clean-up.I follow those. Otherwise,it is very similar to what tywithay suggested.
I use a rubber glove, as i feel this is a strong chemical.
I put some on the ball, rub it in in circles over the top half of the ball sitting on the ball cup of the spinner.
(You really don't need a lot, as it comes inthe form of a gel which sit on the ball nicely. Maybe 2 qurter sized dollops is almost too much for each half.)
I keep on wiping it on, keeping the surface wet with C&D, for about a minute.
Then I wipe it off with a wet paper towel. Then I wipe off the water with a dry paper towel.
Repeat on the bottom half, after turning the ball over 180 degrees.
"None are so blind as those who will not see."