I am using Coco84X with 10% s&p 487 with a 9% fragrance load of Ernesto by Scent Memory in a 12 oz Libbey Status jar. Usually a Premier 750 or 755 work well with my FOs. This one though keeps drowning with weak flame and tunneling with a 750, 755 & 760. I am wondering which fix to try first: decreasing the FL, upping the Wick size to a 765 or higher or trying a CDN. In Previous tests with other FOs a CDN 7 worked really well but perhaps slightly too hot (150°F glass temp. about 2/3 down the jar for 1 burn).