Rudiments allow you to develop independence between your limbs so you can actually take that idea in your head and apply it to the kit without stumbling over yourself. They aren't like scales at all. Scales give you note paths to follow. Rudiments allow you to no longer have to follow anything but your inner drummer. Without them, you are just a Xerox of some other drummer. They give you freedom to create.I’m a bit lost on the rudiments bit though. Rudiments is sort of like our scales...we learn those like a piano player learns scales or a writer learns grammar. It’s the basics, the foundation. We don’t inherently sound different from each other just by learning rudiments...they actually make us sound more like each other than anything else by giving us a standard language. Based on rudiments alone, we’d all sound incredibly similar.
Ever notice how the untrained musician usually sounds like their idol? It's because they dont have the tools to be themselves. All they know is what they have learned by copying someone elses style. I have played with too many guitarists that were Pantera fans that had no identity of their own. The world is full of Dimebag Keith's, Dimebag Jimmy's, Dimebag Ron's, etc.