I have the direct answer to your question.
I have replaced the Kimber Palladian PK10 (an early version) with my DIY silver power cord, feeding my DAC.
For the change to be an upgrade you need to keep these in mind:
1. keep the total AWG the same or heavier. If you go lighter on the total AWG, then you will loose bass, energy and weight (whether on your amp or DAC, phono.) And yes, even though a DAC or a phono stage draws hardly any current, they still benefit greatly from a very heavy AWG power cord. That's because they will be able to draw instanteneous current, and while this current is little, it will come without resistance.
2. The shorter the silver, the better.
3. Avoid lengths of 0.5m, 1m, 2m, 4m. The 0.5,1,2,4,8m series is the perfect antenna to pick up the worst EMI/RFI offenders. Use in between values such as 0.3m, 0.7m, 1.3m, 1.6m, 3m,....
3. The thinner the silver, the better. Try to use AWG30 or thinner. (Yeah, you will need on the order of 100-200 wires per hot / neutral to get the heavy AWG for a power cord!) Use soft anneal silver. If possible, "DEAD SOFT" 3N silver. The dead soft is more important than being 4N or 5N.
4. You also MAY use heavier AWG silver strands, and even sterling silver (only 92.5% silver content), provided that the wire was drawn 50 years ago (or earlier), and the metal had time to recover from the stress of drawing. I have used 70y old AWG19 sterling silver for my power cord (with total AWG10 for each conductor - hot and neutral, no earth ground), about 12in long. (DAC right next to the outlet.) The wires are run inside PTFE tubing, and the two tubes carrying hot and neutral are not running together, but away from each other. You want air to be the dielectric, as air is the best. The teflon tube only touches a piece of the outermost wires.
5. Burn-in: at the beginning of silver burn-in you will notice that high frequencies go up 6-10dB in level. Then it will stabilize, yet feels as if the volume knob is 4-6dB higher than before (well, in my case, compared to the PK10!!!) Now, it's quite crazy considering I'm talking about a DAC with a fixed output. Yet, that was my observation. It will get through this phase in a few days. Resist the temptation to change your crossover, as the tonal balance will stabilize. The power cord change made my DAC sound WAY, WAY more analogue-like, alive, fleshed-out and balanced. The change was literally a paradigm shift. Low resolution mp3 files have lost their digital feel, they sound almost analogue like. Although with less detail level than a high-rez file, but good enough that I feel zero urge to go for higher res versions. Even YouTube / Netflix sound is absolutely engaging.
I'm sure I will get tons of harassment for this post. Fair warning: I'm not gonna be able to engage in lengthy debates - lack of time.
If you are intrigued or curious, then try it out and report back.
Cheers, Janos