Bramble Berry has begun providing IFRA sheets with their essential oils, but the one for Clove Leaf EO lists the Category 9 max as 5.74%. I assume the information comes from their vendor, but that seems really high. There's always a chance something got mixed up (their website looks to have been recently updated), and that would mess up the numbers in their fragrance calculator, too. If you'd like to ask them about it, I find using the chat function on their website to be the quickest and easiest way to communicate.
BTW, the product listing also mentions "Acceleration and ricing in cold process" — which you have proved, for sure!