Lady-of-4 you can fly in the face of generally accepted practices as much as you like but I promise you that if you truly had "zap tested" a truly lye heavy soap you would know unless you tongue was devoid of all feeling. There is absolutely no mistaking a lye heavy soap and zap. Please do not start recommending unsafe practices on this board.
I'm not recommending anything. I'm simply trying to get people to think logically. Might I recommend the book, Scientific Soapmaking, by Kevin Dunn, so that you may better understand where the idea comes from? He is a fellow soap maker with a PHD in chemistry and actually took the time to break down soap making, on a scientific level. It's great for those who care to think outside the box, or quite simply who want to understand the process, rather than just do what is a generally accepted practice.