"The male plug on the TWL power cords has the strongest fit to the AC outlet I've seen out of the many cords I've used and I'm sure plays a role in their performance."
-- aren't these just entry level Furutech FI-11s? 06-04-14: Loftarasa
I have no idea if they're Furutech. I did not pay much attention to the connectors, but I own cords with Furutech terminations (Flavor 4 and Airsines) and none of them have ever had the tight grip that the TWL plug has.
After looking at the website it looks like it is one of the Furutechs. I read somewhere that this is the plug that sounds best with this cable in the cablemaker's opinion (Peter).