HiDiamond Power cords...

@Newbie79, I myself haven't tried a P2 power cord but you could always purchase 1 of each and try them and pic from the two. I started my HD with P3's and bought more and moved on to the P4.

I order a P3 on Wednesday and received it (from Canada) on Friday. Pretty amazing service! Out of the bag it sounds ground. It does have a very little bit of hardness/glass in the lower treble but I'm sure it will diminish with a few hours of burn in. I must say the descriptions of this cable are accurate - this cable is spooky real.

@Bacardi, thanks! I might go that route if I can't find any comparisons online ;-)

Recieved my second P4 power cable. I cooked it for three days on my Audiodharma cable cooker before trying it.

First I tried it on my Pass Labs preamp, then my Pass Labs Amp and finally on my BSG QOL unit. In these three places I noticed just a slight improvement.

I knew Pass equipment has been referred to as not requiring anything special in the way of power cords so, I put the P4 on my BSG QOL unit.
As I said the first day after the cable cooking there was not too much improvement, but today, one day later, there is a remarkable change in the sound quality.
Perhaps this change is do to just coming off the cooker or just needing more playing time, I dunno..

So, I'll let it play for a week on the QOL and then try it again on the Pass Amp and then the Pass Preamp.

Well I put the P4 Powercord on my Pass Labs Amp. There definitely is an increase in deep bass along with a more fleshed out sound.
I'm going to get another for my BSG Qol.