Hi Ramesh,the first thing that comes to mind when you said punchy power cord is the NBS Monitor O, great on my EMC 1. If I remember correctly as I used to have the PS Lab power cord (original one) and I believe their anything but punchy. The only placed I used them was the PP300 because they sound a little bloated on other components.
I second the Shunyata Sidewinder, and the VD Power 3 I'm still breaking in, I like what I'm hearing IMHO.
Just my experience. How are you doing anyway?