I'm still NOT terrible happy with it, because the mathematical model isn't correct, so there have t be errors in it.

Never the less, here are some normal indexes that will make acceptable results...

Front 2
Front up 5
Front down 1
Front-right 33
Front-left 8
Corner down front-right 31
Corner up front-right 34
Corner down front-left 6
Corner up front-left 11
Left 9
Left-up-top 16
Top 17
Right-up-top 28
Right 32
Right-down 24
Bottom 12
Left-down 7
Back 20
Back up 23
Back down 18
Back-right 27
Back-left 15
Corner down back-right 26
Corner up back-right 29
Corner down back-left 13
Corner up back-left 21