All the real world testing that can be done the better. And the easier for people to find the info the better.
A good electrical should always have a big enough alt (or the biggest that wil fit), a batt bank, cap(s) and of course some really well planned and upgraded wiring. If there is a chance something can increase your electrical I say try it.
I personally believe that a good electrical can benefit from a an added cap or 2. Just because it allows your amps to draw its power from a closer source.
hn155: Rockford punch pro speakers, t400.4 deh 80prs, full audio build to come. working towards 175hp n/a, simple but fun.