I just recently made my first batch of GLS from IL's instructions and they couldn't be more thorough! I did not cook anything after mixing lye and oils and it turned out perfect. I did use a stick blender, and I gotta say....reached the flying bubble stage with both batches I've made, and both times it made me giggle! Went to zap-free paste in less than 2 hours without touching it or cooking it.
I dilute exactly like IL's instructions, as well. I put my paste, distilled water, and SL in a wide-mouth half-gallon sized canning jar and then let it sit in a simmering hot water bath on top of the stove until it's soft enough to stick blend. Then I let it sit to settle, cool, and dissolve and top foam before I add FO and PS80, and then bottle it.
I read forever, too, before I actually took the liquid soap plunge, and it was so much easier than I ever thought it would be, thanks to Irish Lass and her fabulous instructions.
Just do it!