See why I'm confused? :headbanging:
Yup!
Ok - these are rough stories (in that they're from memory, rather than notes, but the idea is the same).
Pure olive, at 38% water (water as concentration of oils) is a lye concentration of about 25% (so you have 3 parts water to 1 part lye). At this concentration of lye, olive soap will take a very long time to trace.
At a lye concentration of 33% (2 parts water to 1 part lye), it gets a bit quicker and is a nice balance of easy to work to not so much shrinkage (which is very pronounced in the high water version above).
At a lye concentration of 47% (roughly 1 part water to 1 part lye), it will take about double the time of the high water version.
It's the bits between about 36% lye concentration and 45% lye concentration that lionprincess and newbie would have a lot more information on. And that's where the tipping point is, where it changes from fast back to slow - somewhere in there.