What power cord do you like most on your amp ?

Besides curiosity, I got a small problem with that. I used to have Purist Dominus Rev C Ferox on my quite high current Redgum integrated, and it worked great. And I had Custom Power Cord Company Top Gun on the PS Audio regenerator all the equipment plugged in, including the amp - it is much better in my case than going straight to the wall even by way of the Dominus. However, lately the wall current in the area has been getting worse and I had to try to move the Dominus to the regenerator. It worked, things got better, which is not surprising because Dominus is a superior cord, though the Top Gun is very good too. Problem is that I have only one Dominus and I still miss it on the amp. Another Dominus is hard to find used and quite expensive. So as the thinking goes, I might want to try something that had a chance to outdo Top Gun on the amp while keeping the Dominus connected to the wall outlet and the regenerator. Or, theoretically, something that would be as good as Dominus there and put the Dominus back on the amp. I just have no idea what to try without much hassle and multiple buying/selling cycles. Maybe there is nothing really and I just have to hunt for another Dominus and pay as much as asked, probably about $750-$900.

I am surprised no-one mentioned Shunyata yet, these are popular power cords.

Sure, it has a meaning, but I hear no convincing arguments, not that outlets make no difference - they do.

Well, Elizabeth, I get big differences with different power cords plugged in the same $7 outlet. Besides, audiophile duplex doesn't block interference, as far as I know, and that is the major problem.
Power cord is an extension of a power supply and that's exactly what you want to achieve - improve the power supply.

Problem solved. No, I didn't get another Purist Dominus, I almost accidentally got Purist Aquila Praesto Revision, not current Luminist Revision, power cord that was specifically designed for digital with superior shielding. No fluid or ferox or contego. So I put Dominus back on the amp and ran Aquila from the wall to the regenerator. It's 12 gauge cord. I don't know what Jim Aud, Purist designer, had in mind but this thing works great where it is now. I also tried the other way around - Dominus from the wall to the regenerator and Aquila on the amp. That was also better than what I had before but nowhere near the current arrangement. In this system the place of the Dominus is on the amp. I didn't even try Aquila on the phono and cd player, another Top Gun works well there, though Aquila might be better. I rarely use cd player so I just move power cord and interconnects, once every three/four months.
Very unexpected, this cords and cables experiments can be very rewarding.