Terry,
What I meant was, that with U/M you can use it as a pre spray proir to rinsing with it as opposed to the likes of Powerburst which is a pre spray you would use before rinsing with another product or plain water.
We all have our favourites and ways of combining them with others. Like Simon, I have discounted stuff that I have not been impressed with, probably not given stuff much of a trial, but if you already know of other stuff that works well anything new to you, has to blow you away, to get you to change, or add to your list.
Dave.