A few wiring questons
Hi I'm a newbie, could somebody please help with these questions?

How can you tell what’s start and finish on a coil?
How do you decide whether you should use Tone and Vol pots of 250/500? What would make you choose one or the other?
Why not always send input signal from the pickup to the center lug?
Why not always use audio taper pots? Why would linear taper pots be used anymore?What does a bass with Series/parallel options sound like?
What does a bass with Phase shifting options sound like?
What does a bass with Coil cut options sound like?