wow, just wow! Absolutely the best ECBP batch I've had. I have B519, C919, A120 and now B520. I have not done a side by side yet, but, right away I can tell this batch is the one to beat. Nose is rich and hints at chocolate and baking spices. Lower proof on this batch makes deep nosing possible, the C919 and A120 are almost too strong to get your nose into. Taste is....fantastic! Dark chocolate, cinnamon syrup, thick oily mouth feel coats the tongue, and the lower proof requires no water to enjoy. I love high proof whisk(e)y, and this one still hits the mark without hitting your mouth and chest too hot. Finish is not as long as some other ECBP, mostly because the proof does not roast your insides. Still, having had only a small neck pour thus far, I am still remembering the pour 10 min later. Def one to buy, hell, based on the hype, i bought 3 without trying and have NO REGRETS. Cheers.