Anyone have much experience with Bramble Berry's fragrance calcultor? I don't like strong scented soap and was looking to add just enough FO to cover the scent of the oils I'll be using. I see they have a light scent amount, would that amount work or would I want to even add a bit less? The recipe is a salt bar, 80% coconut and 20% avocado oil with 20% superfat. Thanks!