Hello I am trying to get a cheap waterman pen. And I have narrowed it down to those two. But I do not know the difference between those two so I want FPN's advice. As I heard both those pens resemble Philea,right? And that means the nibs are compatible, am I right? I have a laureat so I want to try different nibs than laureat but if there is a difference in those two pens (except some minor apperance) please give me advices , thanks.