Reference — blue bowl

I've been a dealer selling prospecting equipment since late 2006. In that time, I've had lots of people ask me about the Blue Bowl, and a recent conversation on the topic, got me thinking, "Why don't I just write this all down?" So, here we are. Classification You can't talk about the Blue Bowl without first talking about classification and classifiers. In my experience, most people get the wrong idea about classifiers. They go out prospecting for the first time and they're introduced to a classifier as a screen to get rid of bigger gravel and that's where their understanding sets...