To my eye it appears to be fatter, in it is a nail, that means you are really, really pressing too hard.
Nails are too stiff to give 'line variation'. I would guess you have a stub nib which does....I have a 1.5 in my Joy. I gave my Safari round tip M away to get someone hooked into fountain pens.........then she moved, so I don't know if she's gotten more pens or not.
What width is your stub?
and as said, Lamy nibs are cheap, @$7-8.00, and easy to remove and replace.
You should hold a fountain pen like a baby featherless bird.
You are I think, making baby bird paste.
Edited by Bo Bo Olson, 23 November 2017 - 10:55.
www.nibs.com/blog/nibster-writes/nibs-germany Info on Bock nibs
Due to Mauricio's improved definition of Super-flex, I try not use the term Easy Full Flex, but fail...sigh.
Semi-flex is an “almost” flex; not a ‘flex’ nib. It is great for regular writing with a touch of flair. It can give you some fancy; but it is not made for real fancy writing. For bit more of that get a maxi-semi-flex. Both spread tines 3X. Those are not "Flex" nibs.
Wider than Normal does not exist. Wider than Japanese does. Every company has it's very own standard + slop/tolerance. Developed from the users of it's pens and inks only; not the users or inks of other companies pens. The size you grind a nib to, is your standard only. Paper and ink matter to nib width. Thank god for 1/2 sizes or it would be boring.