I have scrimped and saved and now am ready to purchase a Pelikan M1000 for myself the decision is what nib I have a M800 with a 3OB and a M600 with a 2OB and truthfully the both seem to write about the same line width in straight lines it is only until I start hitting the curves that I start seeing any real difference. My question is to anybody that owns or has written with a M1000 what nib would you choose?