As Ron noted......excellant product.
It was originally developed for the consumer in mind more than the pro user. David developed it to be used by hand, had some light cleaning properties as well as filling ability to hide light imperfections and left a nice sealant.
After some testing though it needed to be a bit creamier and this tweaking took it to a whole new level. We (Kevin, Ron and myself) found that it excelled when used with a machine. Kevin did testing with it via rotary and found it to be a TRUE one-step product....even when used with an orange pad on light colors, it corrected paint rather than hide the imperfections. The filling properties where pretty much eliminated in the tweaking but added was a very fine polishing ability, as Ron noted very much like that of Final Polish II. I have used it by hand and with the Cyclo and Ron used it today with a rotary and called me about the results, he was very pleased.
Some time ago I had spoken of an upcoming Optimum product that would be geared towards a concours super fine polish, one step finer than Optimum Polish, well this is a part of that product, at least the abrasive portion and it's less abrasive than Optimum Polish.
If you do alot of one-step type details you may want to give this product a go.
Anthony