Better power cord for Bryston

I don't have an aftermarket power cord for my 4BSST. I have considered several, but never pulled the trigger. I love my Audience power cord, but was told a syn. res. master coupler would be better for the amp. Opinions?
System:
Maggie 1.6
Bryston 4BSST
DeHavilland Ultra Verve w/upgraded caps
Shanling CDT 100 w/ upgraded tubes - JPS digital ac
All remaining cords are Audience Au24s - Richard Gray