I've tripled up the Anawara 555 and let it steep a couple days, 12 drops in 10ml. It's better, but just not smooth. It's not harsh or bitter, but lacks the sweet finish you get from other 555's.
I did the same with the chocolate tobacco, it's better, but just to much pipe flavor for my tastes. I may find it mixes alright and tones down but I don't see much use for the 555 in my world. I seem to like the "dark sweets" for lack of a better description.