I've eaten Crosse and Blackwell Chow Chow for most of my life.  My parents loved it, and so did my British grandfather.  But it's hard to get here, so I've tried other pickles that call themselves "chow chow" and boy have I been disappointed.  They range from bland to a peculiar metallic sweetness that makes me want to yak.  I've never encountered anything quite like the C&B mustard pickle, and I'm just grateful that I can order it online.