When playing playing a bass with downtuned strings do people often have to adjust the curvature of the neck so that the strings don't rattle? Or do the raise the strings at the bridge?

Example: I was listening to Bowie's "87 and Cry" and it sounds like he's playing a low C on the 1st string. 28 second mark...

Hey,

Any recommended model of Yamaha 5 String Bass Guitar?

Besides, any other reasonable price + 5 string = recording purpose?

Ray