Cracked...

Lately my TWSBI 540's and ROC 100 Fountain pens have been... suffering from cracked nib syndrome. As to no fault of my own, In fact even before I know these were cracks all the pens wrote beautifully. As I remember I believe that It came with one before I even inked my pens for the first time. Now I know that this is a manufacture problem and it to the best of my understanding has been fixed in the new smoke colors and Vac700 fountain pens. 

Here are my three pens. and the cracks they possess . I am currently working with TWSBI to deal with having these replaced with newly manufactured nibs. I will let you know of the results.