@Johnez You seem to be an intermediate level soap maker so you might want to try this recipe and method.
I have used the following recipe with great success. It makes a very rich, dense, creamy lather and is ready to go in about a week's worth of air curing / drying.
The total recipe oil weight is 500g
Stearic Acid - 60%
Shea Butter - 15%
Coconut Oil - 15%
Cocoa Butter - 5%
Castor Oil - 5%
Sodium Hydroxide (NaOH) - 40%
Potassium Hydroxide (KOH) - 60%
Superfat - 6%
To calculate your dual-lye amounts, you can use the soap calculators here on this forum The Soap Making Friend or at Soapee (http://soapee.com/calculator) or Majestic Mountain Sage (https://bit.ly/234ixsG). Both calculate amounts for hybrid lye solutions.
Water = 2.6 x (NaOH + KOH) (28% lye solution)
I adjusted the lye solution to 25% to make it a little more easy to handle scooping into a 3" PVC Pipe mold.
I also added Sodium Lactate along with the glycerin and fragrance oil to make it easier to stir.
Glycerin - 10% of the total oil weight (50g for my 500g recipe)
I originally saw via YouTube. It's a Dual Lye Modified Cold Process soap. The results truly speak for themselves.
You can check out the video here: Making Dual Lye Shaving Soap | Modified Cold Process Method
Just watch out for the potential for a volcano... so far I have done two batches with no issues. ()
Regardless, good luck in your endeavors.
Thanks PB, I've yet to try a dual lye soap so this should be interesting when I get the chance.