I'm another who doesn't really look at the numbers except for cleansing since I have dry skin. When I first started out, I tried to keep the conditioning number high as possible, though it would make a nice soap but they kept drying me out. Now my cond number is quite a lot lower but my soap is a ton better.
Its a great idea to post your recipes here before making and to also let us know what you want in soap. My soap is best for dry/normal skin so someone with really oily skin probably wouldn't like it.
castile is a strange beast. Some people really love it, some hate it. I'm in the hate group, it dries me out something terrible and make me itch. Even in regular soap, I can't use more than 25% OO or it makes my skin feel weird.
I have a few pounds of 1-2 year old castile and no one I know will use the stuff. I should grate it up and make confetti soap with it.