I would buy my Fillys back in a split second if I had to. My Fil DT 13 and 14 are amongst the smoothest shavers I have. Like Gugi said the EPBD is a tad more hollow. I really enjoy shaving with them. Same with my Palmera.
They are supposed to be made from Toledo steel but who knows. One thing I do know, my sensitive skin loves them. I always recommend them if asked.