Stellar P3 with M700 / have an AQ Niagara 5000

Hello All,

My current setup has the digital front end, dCS Bartok and Cambridge CXC transport, and the M700s plugged into the Niagara 5000. System sounds great but as an audiophile that can’t ever be enough to stop me from wondering about improvements…!
Wondering your thoughts about the M700s plugged into a P3 (no other inputs) and the P3 either connected directly to the wall outlet or, alternatively, to the high current outlet of the Niagara.
If plugging into the P3 I assume the M700s would connect to the regen outlets, correct? Would this regenerated power source bump up the performance of the M700s?
Your thoughts or experiences would be welcome.