Hi hedpe,
First, read this,
http://www.autopia.org/forums/showthread.php?s=&threadid=23740
It is vitally important that your towels are of the highest quality.
Remember, the nap, i.e. the little loops of cotton fiber, dramatically help to slice into and breakup/remove #7 with the first two passes.
After that, switch to a premium quality microfiber polishing cloth.
Cheapie, knock-offs, don't perform as well. (I don't know what your using, just offering advise/experience)
Mike Phillips