It's certainly not a roar, more of a grumble. A sore throat.

As for being designed for grease, it seems the opposite is true. I don't understand why they switched to grease. . . and it begs the question of how often the hub ought to be regreased. If at all (they're supposed to be greased for life or some such slogan?).

I think I'm best buying a knackered AW hub on ebay and messing with it before I move onto the 5 speed. Though I think I remember it stated somewhere that the 3 speed designs are quite different and much simpler than those with more gears so I'm not sure how useful a learning object it'll be.