What will it buy me?

I've noticed significant improvements at the micro- and macro-dynamic levels with each electrical tweak I've performed. Thus far those tweaks include:

o Three dedicated circuits/lines for amp, pre, and cd.
o Custom 10 gauge 99.95 % OFC romex.
o PS Audio Power Port outlets for each circuit.
o Lifted / Floated the ground. (no lectures please)
o Moved all audio circuit breakers to same phase at
service panel.

What sonic improvements could I expect should I attempt the following tweaks? And please order those tweaks offering the greatest sonic benefits first and why.

o Move all audio circuit breakers from the bottom of the
service panel sub-panel to the highest position within
the sub-panel. (Sub-panel includes all regular house
circuits i.e. Refr., phones, lights, computers, m/w,
etc.)
o Install a dedicated 20 amp line for subwoofer.
Currently on a non-dedicated 15 amp circuit on same
phase as other audio circuits)
o Arrange the audio circuit breakers in the service panel
top-down in the following order:
1. Amp, 2. pre, 3. subwoofer, 4. cd.
(currently the amp is at the bottom)
o Install a dual 20 amp circuit and convert the amplifier
to 230 volts. (I have the instructions & schematic)
o Swap out the PS Audio Power Ports for FIM or other audio
grade wall outlets.

Thanks for your input, and please include any drawbacks also.

-John

Equipment:
Aerial Acoustics Model-10t Speaker (4ohm, 86db)
McCormack DNA-2 LAE Amplifier (300 wpc-8ohm, 600 wpc-4ohm)
Sony SCD-1 CD Player
Primare P30 Surround Pre (100% analog in by-pass mode)
Triad Platinum Subwoofer (500 wpc active)
Harmonic Technology Magic Link XLR 1m Interconnects
Harmonic Technology Pro Silway Mk II XLR 2m Interconnects
Harmonic Technology Pro 9 Plus bi-wire 10 ft Speaker cable
Foundation Research LC-2 in-line power conditioner for amp
Foundation Research LC-1 in-line power conditioner for pre
Foundation Research LC-1 in-line power conditioner for cd