Upgraded power cables- Who's on First?


Just wondering...If you have 2 upgraded power cables to use where is the the best place to use them? Wall to conditioner first?
Then cdp to conditioner? Perhaps preamp to conditioner would be 2nd best choice? I really am too lazy to do hours of testing if someone has already figured this out and does it really matter?
Thanks
128x128blueskiespbd

Who's on First? Most important power cable is the one from the breaker box to the outlet. Can I assume everyone has a proper dedicated line? Two would even be better.
I second that, and also add that the minimum gauge be at least 10 gauge, and a dedicated line for each component to start.
I really am too lazy to do hours of testing if someone has already figured this out

Alright,someone that's truthful about why they asked a question!!