How did SWIM deviate from the tek in a way that would result in lower yields? You mean because SWIM added more water? It's right in the tek. I have seen his original post also where he addressed this. He said to use 1.5X to 2.0x the water if you are using powdered root bark and specifically he said do not add more lye, so SWIM didn't. SWIM later added more lye to the solution when he stopped getting any spice and he started getting much more spice out it again.