I can easily make an audible click with my pickup selector if I set my mind to it. That goes for both my SR5s, my tele, both switches on my superstrat, and just about every other pickup selector equipped guitar/bass I've tried.
I don't generally hear a click in a live situation because of the ambient noise, not to mention that I almost never operate the switch while a string is vibrating. But if I sit at home noodling in front of my amp, for example if I'm checking out a new instrument, I do hear it, maybe three out of four times, provided that I let a string ring while I flick the switch.
But by all means, if in doubt, do contact customer service. I haven't heard doomster's bass with my own ears, so I don't know if the click he hears is the same, normal, click that I hear, or if it's something entirely different. I can only speak for myself and the instruments I've laid my own hands on, although I feel that what electronic schooling and experience I have, does allow me a stab at explaining the phenomenon in more general terms.