Hello, I have a Conid Bulkfiller (regular size) with an EF titanium nib, but I am keen on playing around with it a bit now and trying something different in this pen. I know that it takes a #6 but am unsure which nibs from other manufacturers would readily fit in there. I'm interested in anything really, vintage or contemporary, but if I go a modern nib I'd like something a bit fancy if any nibs from the higher end manufacturers would fit. Thing is though I don't really know where to start looking.. there are plenty of loose nibs out there, but I've no idea which nibs from what pens would suit my Bulkfiller. Do you have any recommendations for my pen? Would the nib from a Montblanc 146 fit? I'm definitely happy to spend a bit of money on the right nib!