This is what I would do as well. No need for palm and tallow both, and this will help your conditioning factor of the bar.I too would remove the palm as you are using tallow. I would increase the CO between 15-20 and Castor at 5%. In place of the Palm I would add Olive Oil. So, 70% Tallow, 15% CO, 10% Olive and 5% Castor oil. Should be a nice bar of soap.