I only recently discovered that Charles Pfeil left the Mentor Graphics seven months ago. Perhaps many do not know who he is and my post is done just to thank the person who has allowed all of us, users of E / XpeditioPCB, to have such a great tool. Obviously, many others have contributed, but he is the basis of everything.
He was the original product architect for Expedition PCB ( Veribest ), and one of the inventors of XtremePCB and the Sketch Router, BGA escape... It 'a real mentor.
I am sorry that he has left the Mentor Graphics and I wish him well in his new experience.