Power Cord for PS Audio Power Plant Premier?

I recently replaced my power conditioner with a PS Audio PPP. The old unit's cable had the 20A connector, so I installed the PPP with a PS Audio Statement PC expecting some synergy. While much better than the old conditioner in terms of definition, extension, and "Hi-Fi" characteristics, with the combo there is an emphasis on upper mid/low treble that does not wear well. I tried a JPS Power AC, much richer lower mids and musical flow, but rather dark on top. The PSA cord may just have a long burn-in, but I'm curious what others might have found specifically complements the PPP - or not. Say under $1000 for the sake of argument.

Dedicated 15A AC line, but plenty of compact fluorescent bulbs and a few dimmers in the house. Current demands are low - SACD/CDP, TT, phono stage, passive pre, Bel Canto Class D 150 wpc monoblocks.