Oyaide or Furutech plugs

Hi everybody,

I'm currently thinking about buying a new DIY mains cable.
It will probably go to my headphone amp (Viva Egoista 845) or maybe to my DAC (Weiss Medea+).

I made my choice about the cable itself, I'd like to try the Furutech FP-TCS31.

But I have some hesitation about the plugs, between the recent gold Furutech FI-28/38 (G) and the Oyaide P004/C004 (beryllium/palladium).

I'm looking for some very liquid and smooth sound, with no spike/highlight in the treble or in the high-medium which could sound agressive.

Did some of you try these plugs and could help me to choose by giving me some infos about the differences?

Best regards,
Sylvain