I'd say dump the weakest cable no matter where it currently resides. I've experienced noticeable differences when swapping out cables in all locations.
Also it depends on what change you were hoping for. That could help you decide which is the first cable to go. It also helps you choose which cable to replace it with.
The prerequisite to all this is that you should read the forums as intently as Burgess Meredith did in his Henry Bemis/Time Enough At Last Twilight Zone episode. Research so you'll have an idea of what to expect before and after.
Bottom line. I've broken all the rules and continue to do so, and despite that still have had success.
Also it depends on what change you were hoping for. That could help you decide which is the first cable to go. It also helps you choose which cable to replace it with.
The prerequisite to all this is that you should read the forums as intently as Burgess Meredith did in his Henry Bemis/Time Enough At Last Twilight Zone episode. Research so you'll have an idea of what to expect before and after.
Bottom line. I've broken all the rules and continue to do so, and despite that still have had success.