My hard oils get melted together on the stove, I the add the liquid oils and let it all cool to around 40 degrees or even as low as 36 and they are always still clear.When you are soaping at 40, do you find that your oils look turbid because of the soy wax then? I've always tried to soap with a pot of clear oils to avoid stearic spots but my highest melt point ingredient is palm, so around the same temp as you I will still have clear oils. I know it's probably the same as people soaping at room temp but including palm or butters and that never worked for me personally.