Pass Labs Power Cord

A good audio bud here in town has the 350 running into 10T's w/First Sound pre. Tried my DIY, then Cardas and is now using Gutwire throughout the system. It sounds very good, running through Brickwall surge protectors.

I am using a Virtual Dynamics Rev2 on my Pass Labs X350.5. It realy makes it come alive.

Have anyone tried Shunyata pc with pass labs amps? I have also heard that the power supplies are so well designed and built that expensive power cords simply don't make much of a difference. anyone wants to comment?