Vladimir will probably say his power supply is so robust that it really doesn't make much of a difference what kind of a power cord you use. That's what I'd bet upon. (Former LL1-Ref owner.) Anyway, that was good advice. Let us know.
Having said that, any kind of braided design is probably sufficient and just as good. Powercords make the most difference on source (CD, Dac) components, I think.