What you are seeing is the suggest range. For example, I plugged in a recipe that was 100% lard (just as a sample). It has a hardness of 42, which falls in that range of 29-54. It only has a cleansing of 1. I've made 100% lard soap, and IMO it cleanses just fine. I use the Soap Calc numbers as a very general guideline, not as an absolute. A 100% olive oil soap it only gives a score of 17 for hardness, but in my experience, a 100% olive oil soap is actually very hard, but it does take longer to get there. Regarding hardness, I tend to view the Soap Calc's numbers as how hard it is right away, and also how fast it will trace.
Typically, there are tradeoffs. Most oils that make bubbles are not very conditioning oils, for example. Coconut will add hardness and bubbles, but is not very conditioning.
I would be very curious to see if anybody has a recipe that scores "high" in all categories. I don't know of any oils that score "high" in all categories on Soap Calc.
Here's some interesting info on single oil soaps:
http://www.zensoaps.com/singleoil.htmThis group apparently had a big swap and everybody made a soap with only 1 oil. Most soapers spend a lot of time tinkering with combos of oils, yet amazingly many of these single-oil soaps were very nice, according to the reviewer.
Also, some of these qualities are in opposition to each other. For example, Conditioning is sort of the opposite of Bubbles and Cleansing. Conditioning tends to come from the glycerin (naturally produced in the soap) and the unsaponified oils when you use a superfat...and both of these inhibit lather and cleansing.