Which one benefits more from a better power cord?

You've got the goods so try it out and see and then let us know!

I would start with the DAC. But I agree with trying it both ways.

Not hard to do.

Well, the equipment are stacked in a vertical stand and handling and positioning Elrod cables are axtremely difficult, especially, the Statement which is humongous.

Of course, I'll try once to see if there is a difference but I just wanted to know if there is a certain preference.