You understood me correctly - now, I can say that the percentage of varying matches, where I would put a having clause > X to reduce what is returned, would be about 10% of all records - which are the distinct values where there would be a solid pattern match occurring multiple times. I am in the same boat as many others are, which is why I have posed this question to many forums, with no good answer. If I had a good starting point though I could work off that.