Have you tried putting the selns into a s/sheet with all the above criteria and then using an excel pivot to tell you how each criterion has gone?

Garyf, No nothing to do with my PPM bit of fun method,...... there was nothing obvious as regards to State, Metro, etc. but it could be worth a closer look.

Speedy Ben,, my computer skills are very lacking and to give you an idea I'm still using WORKS spreadsheets and Data Bases cos I know how to use them.

I'm not familiar with this Pivot thing, the way I've tested each criteria was applying the filters to my data base.

I've just found roundabouts and swings every time, i.e. if I apply PPP of less than $2.51, S/R instantly improves (of course) followed by a corresponding lesser final divi.