There's a lot to this....
I don't have time to get into it now....
I will never alter a Montblanc pen.
I will never take a MB nib and mount it onto one of my pens.
I will never approach a design that distinctly resembles an MB.
There is a worldwide pen company that will never again have 3 center-bands of any kind. This is due to a potential lawsuit that never came to fruition...only a letter that warned the company of the ramifications...
I could write a dissertation on this.
Botton line, it cost Penopoly a LOT of money to simply clear their name regarding total BS.
It was frivolous, it was ridiculous.
The judge threw it out, but it still cost Penopoly a HELL of a lot to clear their name.
Don't **** around with anything MB. Don't use a nib, don't make an overlay, don't use proprietary parts.
My only recourse....
I often get customers wanting me to use a MB nib, repair their MB pen, make a new pen around their MB...
I love to tell them the whole story...and by the end, they fully understand how MB has completely screwed the independent penmaker.