Hello again Abdi:
First, a lot of thanks for your extense answer.
But, how you say,its very difficult to explain your hard work of many years,in a few lines.
Its very complicated for me to understand how you can reduce 6545 groups formed from 3 numbers,to only 10 numbers.
I know you are a very clever person.You helped me years ago with some useful charts of Advantage Plus through "V" Chart.
I only can give you thanks for your efforts to explain me it.
Regards and a lot of luck.