I have not, Id love to hear about your experience with what you've made! The fact that there are SOOO many different ways to do this, is that much more intriguing!
edit: Check this out, if this is true so why would you need a binder?....hmmmm
this is a quote from this site check it out too! http://www.jacobsrocketry.com/aer/propellant.htm
It is likely that the wetting dissolves the KNO3 and then coats it around the charcoal and sulfur particles so that it is in much more intimate contact with them.