Were you expecting some change in the surface of an already polished ball?
Control-It does not seem to work by adding degrees of shine; it seems to work by doing a certain amount of pore clogging (the less a resin ball absorbs, the less it will hook in general, but not always). So do not say it does not work until you check the ball's reaction. It may alos use something called a slip agent which makes a ball's surface less grippy, less tacky than a normal polish.
Besides using other Neo-Tack products has nothing to do with how Control-It works. I have used it and only really like one other Neo-Tac product, a cleaner called Liquid Nitro.
Control-it will add some shine to a dull ball and will add more shine when used with a spinner, but I do not think its effectiveness is linked to the necessity of using it with a spinner.
Try it!
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"None are so blind as those who will not see."