It really does come down to your skin type and trial & error. When I first started soaping, I was way too dependent on the soapcalc numbers. I figured since I have dry skin, if I had low cleansing and high conditioning, my skin would like it, wrong.
I couldn't figure out why my high olive oil, low coconut oil was drying. I messed with the superfat, kept increasing the olive oil, added butters and other "conditioning" oils. I eventually tried a 100% olive oil soap and found out I'm sensitive to it, high OO dries me right out.
After that, I started using higher amounts of palm but still quite a lot of OO, the soaps were better but still not great. I was to the point I though I might be one of those people who couldn't use CP. Then one day I was out of almost all oils, so I made a 80% lard, 20% coconut and loved it. That when it dawned on me I needed to greatly increase the lard (or palm) and really lower the OO.
Now I have a recipe I love, it works well for most all skin types, has good lather and traces slow if I ever want to do swirls. I like it with 8% SF and at least half the water replaced with aloe juice.
50% lard, palm or tallow (I use lard)
25% olive oil or other conditioning oil like avocado or almond (I use OO)
20% coconut, palm kernel oil or babassu (I use coconut)
5% castor
One thing I wish I would have done as a newbie is create a base recipe with common oils, then messed with butters and more exotic oils. I spend hundreds of dollars on soap that no one really want to use. Its decent but I have much, much better soap made with simple grocery store ingredients.
Now if I want to add in some kind of butter, I can reduce the lard some and replace with the butters. Same with a exotic liquid oil, I can replace some of the OO. That way I still have my base recipe but tweaked a bit to make a "luxury" bar. My coconut and castor amounts always stay the same.