I use both GV shortenings. The palm and tallow one is directly in Soapcalc. This is my primary and makes an excellent balanced bar with lard, coconut and olive/safflower.
For the vegetable one, I use 'Crisco, New' for vegan soaps. While it may not be a perfect match, I've done it half a dozen times without any hint of lye-heavy soap. Typically about 40% GV veg, 20% coconut, 25% olive/safflower, 5% castor, 10% shea. The only downside to the GV veg is that it's pretty quick to trace, even with the recipe above having 25% oleic oil.
Thank you BG. How much % palm: tallow in GV shortening? I do have quick trace problem with my recipes that I use higher hard oils than my regular amounts. I started using 30% lye solution to deal with that, it helps a little. May I ask how much your lye concentration is? (Only if you like to share).